Index

Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

# Index: E

e (constant) : sed & awk, 9.1.1. Trigonometric Functions
-e option (sed)
  sed & awk, 2.3.1. Specifying Simple Instructions
  sed & awk, 2.3.2.3. Mixing options (POSIX)
EBCDIC
  Learning the Korn Shell, 1.6.2. Filenames and Wildcards
  UNIX Power Tools, 35.12. Converting Between ASCII and EBCDIC
echo command
  Learning the Korn Shell, Summary of Korn Shell Features
  Learning the Korn Shell, 1.4. Getting the Korn Shell
  Learning the Korn Shell, 3.4. Shell Variables
  Learning the Korn Shell, 7.2.1. print
  Learning the Korn Shell, A.1. The Bourne Shell
  UNIX Power Tools, 6.8. Shell Variables
  UNIX in a Nutshell, Chapter 2, Reference: echo
  UNIX in a Nutshell, Chapter 4, Reference: echo
  UNIX in a Nutshell, Chapter 5, Reference: echo
  in bash cells : UNIX Power Tools, 46.10. A Portable echo Command
  in Bourne shell scripts : UNIX Power Tools, 44.12. Trapping Exits Caused by Interrupts
  in C shell : UNIX Power Tools, 47.2.1.1. Writing Files
  combining two : UNIX Power Tools, 45.30.2. Using echo with awk, colrm, or cut
  command-line options : UNIX Power Tools, 8.6. Output Command-Line Arguments
  control characters used with
    UNIX Power Tools, 45.35.1. With echo
    UNIX Power Tools, 45.35.2. With tr and echo
  creating error messages : UNIX Power Tools, 8.6.2. Making Error Messages
  debugging using : UNIX Power Tools, 46.2. Quoting Trouble? Think, Then Use echo
  -E, -e options : UNIX Power Tools, 46.10. A Portable echo Command
  escape sequences interpreted by : UNIX Power Tools, 46.10. A Portable echo Command
  examples
    UNIX Power Tools, 44.5. Test String Values with Bourne Shell case
    UNIX Power Tools, 44.12. Trapping Exits Caused by Interrupts
    UNIX Power Tools, 44.18. Standard Command-Line Parsing
    UNIX Power Tools, 45.27. Turn Off echo for "Secret" Answers
    UNIX Power Tools, 47.2.1.1. Writing Files
    UNIX Power Tools, 47.2.4. Quoting
  external versions of : UNIX Power Tools, 8.11. Which One Will bash Use?
  interpreting octal numbers : UNIX Power Tools, 45.35.1. With echo
  -n option : UNIX Power Tools, 46.10. A Portable echo Command
  sending escape sequences : UNIX Power Tools, 41.9. Commands to Adjust Your Terminal
  shell scripts using : UNIX Power Tools, 45.27. Turn Off echo for "Secret" Answers
  showing values of variables : UNIX Power Tools, 6.1. What Environment Variables Are Good For
  turning off : UNIX Power Tools, 45.27. Turn Off echo for "Secret" Answers
  versions of
    Learning the Korn Shell, 7.2.1. print
    UNIX Power Tools, 46.10. A Portable echo Command
  writing special escape sequences : UNIX Power Tools, 7.6. Session Information in Your Terminal's Status Line
echo flag, turning off : UNIX Power Tools, 41.2.2. Handling Most Characters
echo shell variable
  UNIX Power Tools, 6.9. Special C Shell Variables
  UNIX Power Tools, 8.17. verbose and echo Variables Show Quoting
  UNIX in a Nutshell, 5.3.3. Predefined Shell Variables
echoing, smart : UNIX Power Tools, 41.5. Why Some Systems Backspace over Prompts
ed editor
  Learning the Korn Shell, 3.5.1. Environment Variables
  Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
  Learning the Korn Shell, 7.1.1. Here-documents
  Learning the Korn Shell, 9. Debugging Shell Programs
  sed & awk, 2. Understanding Basic Operations
  UNIX in a Nutshell, Chapter 2, Reference: ed
  diff command and : UNIX Power Tools, 28.9. ex Scripts Built by diff
  file size limits : UNIX Power Tools, 33.8. Batch Editing Gotcha: Editors Bomb on Big Files
  no matches : UNIX Power Tools, 33.7. ed/ex Batch Edits: Avoid Errors When No Match
ediff script
  UNIX Power Tools, 28.8. More Friendly diff Output
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
edit command : UNIX in a Nutshell, Chapter 2, Reference: edit
edit command (dbx) : UNIX in a Nutshell, Chapter 20, Reference: edit
edit command (ex) : UNIX in a Nutshell, Chapter 9, Reference: edit
edit command (SCCS)
  UNIX Power Tools, 20.13. SCCS Basics
  UNIX in a Nutshell, 17.6.2. Pseudo-commands
editing
  bfs command : UNIX in a Nutshell, Chapter 2, Reference: bfs
  combining with movement (vi) : Learning the vi Editor, 4.1. More Command Combinations
  compressed files : UNIX Power Tools, 24.11. Edit Compressed Files with zvi, zex, and zed
  ex commands for : (see ex commands; ex editor)
  with file comparisons : UNIX Power Tools, 28.9. ex Scripts Built by diff
  files, restrictions on : UNIX in a Nutshell, Chapter 2, Reference: red
  paired item checking : UNIX Power Tools, 29.9. Looking for Closure
  pipelined edits : sed & awk, 4.4.4. Edits To Go
  with power tools : UNIX Power Tools, 1.6. Power Tools for Editing
  sed commands : (see sed editor)
  spell checking : (see spell checking)
  vi commands for : (see vi commands)
EDITOR variable
  Learning the Korn Shell, 3.4.2.1. Editing mode variables
  Learning the Korn Shell, 3.5.1. Environment Variables
  UNIX Power Tools, 6.3. Predefined Environment Variables
  UNIX in a Nutshell, 4.3.3. Other Shell Variables
editors
  ed : (see ed editor)
  Emacs : (see Emacs editor)
  ex : (see ex editor; ex editor)
  patch program : (see patch program)
  qsubst program
    UNIX Power Tools, 33.10. Quick Globals from the Command Line with qsubst
    UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
  scripting line editors : UNIX Power Tools, 33.1. Why Line Editors Aren't Dinosaurs
  sed (stream editor) : (see sed editor)
  vi : (see vi commands; vi editor)
egrep command
  Learning the Korn Shell, 4.3.2. Patterns and Regular Expressions
  Learning the Korn Shell, 4.3.2.1. Regular expression basics
  Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
  UNIX Power Tools, 17.21. lookfor: Which File Has that Word?
  UNIX Power Tools, 26.4.11. Extended Regular Expressions
  UNIX Power Tools, 27.5. Extended Searching for Text with egrep
  UNIX Power Tools, 27.9. New greps Are Much Faster
  UNIX Power Tools, 27.16. Faking Case-Insensitive Searches
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
  sed & awk, 3. Understanding Regular Expression Syntax
  UNIX in a Nutshell, Chapter 2, Reference: egrep
  | (vertical bar) : UNIX Power Tools, 27.5. Extended Searching for Text with egrep
  examples : UNIX Power Tools, 50.3. apropos on Systems Without apropos
  expressions
    UNIX Power Tools, 27.5. Extended Searching for Text with egrep
    UNIX Power Tools, 48.4. Automatic Reminders and More: calendar
    UNIX Power Tools, 48.2. Online Phone and Address Lists
  -f option : UNIX Power Tools, 27.7. grepping for a List of Patterns
  -i option : UNIX Power Tools, 50.6. Searching Online Manual Pages
  pattern-matching metacharacters : UNIX in a Nutshell, 6.2. Metacharacters, Listed by UNIX Program
  picking the processes to kill : UNIX Power Tools, 38.13. Interactively Kill Processes Matching a Pattern
  searching manual pages : UNIX Power Tools, 50.6. Searching Online Manual Pages
eight-bit filenames : UNIX Power Tools, 23.15. Using unlink to Remove a File with a Strange Name
elapsed time
  UNIX Power Tools, 39.2. Timing Programs
  UNIX Power Tools, 39.5. Why Is the System So Slow?
ELF files, converting to COFF : UNIX in a Nutshell, Chapter 2, Reference: cof2elf
elif : (see if)
elookfor script
  UNIX Power Tools, 17.21. lookfor: Which File Has that Word?
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
else statement : (see if statements)
em-dashes : UNIX Power Tools, 43.21. Preprocessing troff Input with sed
emacs editor
  Learning the Korn Shell, 2. Command-line Editing
  Learning the Korn Shell, 2.3. Emacs Editing Mode
  Learning the Korn Shell, 2.3.1. Basic Commands
  Learning the Korn Shell, 2.3.5. Filename Completion and Expansion
  Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  Learning the Korn Shell, 2.4.6. Filename Completion
  Learning the Korn Shell, 2.6. Finger Habits
  Learning the Korn Shell, 3.1. The .profile File
  Learning the Korn Shell, 3.4.2.4. Terminal Types
  Learning the Korn Shell, 3.5.1. Environment Variables
  Learning the Korn Shell, 4.3.2. Patterns and Regular Expressions
  Learning the Korn Shell, 4.3.2.1. Regular expression basics
  Learning the Korn Shell, 4.4. Command Substitution
  Learning the Korn Shell, 9. Debugging Shell Programs
  Learning the Korn Shell, A.4. pdksh
  Learning the UNIX Operating System, 4.1. Methods of Creating Files
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
  UNIX in a Nutshell, 7. The Emacs Editor
  abbreviations : UNIX Power Tools, 32.11. Using Word Abbreviation Mode
  advantages over other editors : UNIX Power Tools, 32.1. Emacs: The Other Editor
  auto-save file : UNIX Power Tools, 32.4. Backup and Auto-Save Files
  backup file : UNIX Power Tools, 32.4. Backup and Auto-Save Files
  C shell's PWD and : UNIX Power Tools, 32.9. Unset PWD Before Using Emacs
  command completion : UNIX Power Tools, 32.6. Command Completion
  commands : Learning the Korn Shell, B.7. Emacs Mode Commands
  directory for : UNIX Power Tools, 4.4. Directories for Emacs Hacks
  global initialization file : UNIX Power Tools, 32.3. Customizations and How to Avoid Them
  GNU emacs
    Learning the Korn Shell, 2.3.6. Miscellaneous Commands
    Learning the Korn Shell, 3.1. The .profile File
    Learning the Korn Shell, A.5. bash
  Gosling (Unipress) emacs : Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  insert mode versus overwrite : UNIX Power Tools, 32.5. Putting Emacs in Overwrite Mode
  key mapping : UNIX Power Tools, 32.7. Mike's Favorite Time Savers
  mouse-based editors versus : UNIX Power Tools, 32.2. Emacs Features: A Laundry List
  quoting control characters : UNIX Power Tools, 32.10. Inserting Binary Characters into Files
  pattern-matching metacharacters : UNIX in a Nutshell, 6.2. Metacharacters, Listed by UNIX Program
  search commands : Learning the Korn Shell, 2.3.4. Moving Around in the History File
  search customizations : UNIX Power Tools, 32.8. Rational Searches
  temporary files generated by : UNIX Power Tools, 14.11. Finding (Anyone's) Home Directory, Quickly
  x-on/x-off flow control : UNIX Power Tools, 32.12. Getting Around Emacs Flow Control Problems
.emacs file
  UNIX Power Tools, 32.3. Customizations and How to Avoid Them
  UNIX Power Tools, 32.11.2. Making Word Abbreviations Part of Your Startup
emacs mode command-line editing
  Learning the Korn Shell, Korn Shell Versions
  Learning the Korn Shell, Summary of Korn Shell Features
  Learning the Korn Shell, 2.3. Emacs Editing Mode
  Learning the Korn Shell, 7.2.1.2. Options to print
  Learning the Korn Shell, 10.2.3. Types of Global Customization
  Learning the Korn Shell, A.4. pdksh
  UNIX Power Tools, 11.13. Shell Command-Line Editing
  basic commands : Learning the Korn Shell, 2.3.1. Basic Commands
  case-changing commands : Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  enabling : Learning the Korn Shell, 2.1. Enabling Command-line Editing
  exchanging point and mark : Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  filename completion/expansion : Learning the Korn Shell, 2.3.5. Filename Completion and Expansion
  history file commands : Learning the Korn Shell, 2.3.4. Moving Around in the History File
  key customization in next ksh release : Learning the Korn Shell, A.7. The Future of the Korn Shell
  keyboard shortcuts with aliases : Learning the Korn Shell, 2.3.7. Keyboard Shortcuts with Aliases
  line commands : Learning the Korn Shell, 2.3.3. Line Commands
  mark : Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  point (dot) : Learning the Korn Shell, 2.3.1. Basic Commands
  repeat counts : Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  searching the history file : Learning the Korn Shell, 2.3.4. Moving Around in the History File
  terminal requirements : Learning the Korn Shell, 2.3.1. Basic Commands
  transpose characters command : Learning the Korn Shell, 2.3.6. Miscellaneous Commands
  useful command subset : Learning the Korn Shell, 2.6. Finger Habits
  word commands : Learning the Korn Shell, 2.3.2. Word Commands
  in workalike shells : Learning the Korn Shell, A.6. Workalikes on PC Platforms
.emacs_ml file
  UNIX Power Tools, 32.7. Mike's Favorite Time Savers
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
email (electronic mail)
  Learning the Korn Shell, 1.5.1. Commands, Arguments, and Options
  Learning the Korn Shell, 1.7.1. Standard I/O
  Learning the Korn Shell, 3.1. The .profile File
  Learning the Korn Shell, 3.4.2.2. Mail Variables
  Learning the Korn Shell, 3.5.1. Environment Variables
  Learning the Korn Shell, 4.4. Command Substitution
  Learning the Korn Shell, 7.1.1. Here-documents
  Learning the Korn Shell, 7.2.2.5. Options to read
  Learning the Korn Shell, 8.4.1. Traps and Functions
  Learning the Korn Shell, 8.4.2. Process ID Variables and Temporary Files
  Learning the Korn Shell, 8.4.4. Resetting Traps
  Learning the Korn Shell, A.1. The Bourne Shell
  Learning the UNIX Operating System, 3.4. Electronic Mail
  aliases, displaying addresses for : UNIX in a Nutshell, Chapter 2, Reference: mailalias
  dead.letter : Learning the Korn Shell, 8.4.2. Process ID Variables and Temporary Files
  mail command
    UNIX Power Tools, 1.33. UNIX Networking and Communications
    UNIX in a Nutshell, Chapter 2, Reference: mail
  MAIL variable
    Learning the Korn Shell, 3.4.2.2. Mail Variables
    Learning the Korn Shell, 3.5.1. Environment Variables
    UNIX Power Tools, 6.9. Special C Shell Variables
    UNIX in a Nutshell, 4.3.3. Other Shell Variables
    UNIX in a Nutshell, 5.3.3. Predefined Shell Variables
    UNIX in a Nutshell, 5.3.5. Environment Variables
    as array : UNIX Power Tools, 47.5. Using C Shell Arrays
  mail.base program : UNIX Power Tools, 48.10. Working with Names and Addresses
  mailalias command : UNIX in a Nutshell, Chapter 2, Reference: mailalias
  mailavg script (example) : sed & awk, 13.4. mailavg - Check Size of Mailboxes
  mailboxes, disk space and : UNIX Power Tools, 24.2. Save Space with Bit Bucket Log Files and Mailboxes
  MAILCHECK variable
    Learning the Korn Shell, 3.4.2.2. Mail Variables
    UNIX Power Tools, 21.8.2. For Bourne Shell Users
    UNIX in a Nutshell, 4.3.3. Other Shell Variables
  MAILPATH variable
    Learning the Korn Shell, 3.4.2.2. Mail Variables
    Learning the Korn Shell, 3.4.2.5. Command Search Path
    Learning the Korn Shell, 3.5.1. Environment Variables
    Learning the Korn Shell, 4.5. Advanced Examples: pushd and popd
    Learning the Korn Shell, A.6. Workalikes on PC Platforms
    UNIX Power Tools, 21.8.2. For Bourne Shell Users
    UNIX in a Nutshell, 4.3.3. Other Shell Variables
  .mailrc : Learning the Korn Shell, 7.1. I/O Redirectors
  mailx command : UNIX in a Nutshell, Chapter 2, Reference: mailx
  message headers : Learning the UNIX Operating System, 3.4.2. Reading Your Mail
  multiple mailboxes : UNIX Power Tools, 21.8.1.1. Multiple Mailboxes
  notification of : UNIX Power Tools, 21.8. The MAILCHECK and mail Variables Check More than Mail
  sending command output : Learning the UNIX Operating System, 5.2.2. sort
  sending files : Learning the UNIX Operating System, 6.1. Running a Command in the Background
email messages
  automatic replies to : UNIX in a Nutshell, Chapter 2, Reference: vacation
  dead.letter : Learning the Korn Shell, 8.4.2. Process ID Variables and Temporary Files
  database files for : UNIX in a Nutshell, Chapter 2, Reference: gencat
  encoding binary files for : UNIX in a Nutshell, Chapter 2, Reference: uuencode
  internationalizing : UNIX in a Nutshell, Chapter 2, Reference: exstr
  new, notifying user of : UNIX in a Nutshell, Chapter 2, Reference: notify
  queues, removing : UNIX in a Nutshell, Chapter 2, Reference: ipcrm
  reading
    UNIX in a Nutshell, Chapter 2, Reference: mail
    UNIX in a Nutshell, Chapter 2, Reference: mailx
  retrieving from files : UNIX in a Nutshell, Chapter 2, Reference: gettxt
  searching contents of : UNIX in a Nutshell, Chapter 2, Reference: srchtxt
  searching for : UNIX in a Nutshell, Chapter 2, Reference: gettxt
  sending
    UNIX in a Nutshell, Chapter 2, Reference: mail
    UNIX in a Nutshell, Chapter 2, Reference: mailx
    to all users : UNIX in a Nutshell, Chapter 2, Reference: wall
    permission status : UNIX in a Nutshell, Chapter 2, Reference: mesg
    reminders to oneself : UNIX Power Tools, 40.11. Send Yourself Reminder Mail
emoticons : UNIX Power Tools, 51.12. You Don't Have Enough Smileys?
empty files
  UNIX Power Tools, 13.14. What Can You Do with an Empty File?
  UNIX Power Tools, 21.7. Setting File Modification Time with touch
emptying files : UNIX Power Tools, 24.1. Instead of Removing a File, Empty It
enable command : UNIX Power Tools, 8.11. Which One Will bash Use?
encoded files, recreating original file : UNIX in a Nutshell, Chapter 2, Reference: uudecode
encoding arguments in termcap or terminfo entries : UNIX Power Tools, 41.11.2. Encoding Arguments
encryption
  UNIX Power Tools, 22.17. Ways of Improving the Security of crypt
  UNIX in a Nutshell, Chapter 2, Reference: vi
  creating keys : UNIX in a Nutshell, Chapter 2, Reference: makekey
  files : UNIX in a Nutshell, Chapter 2, Reference: crypt
end command (csh) : UNIX in a Nutshell, Chapter 5, Reference: end
end of line : (see $ (dollar sign))
end of word : (see \<; \>)
End of file unexpected
  UNIX Power Tools, 46.1. Tips for Debugging Shell Scripts
  UNIX Power Tools, 46.1.2. Unmatched Operators
END procedure : sed & awk, 11.1.6. Control Flow
end-of-file (EOF) character : UNIX Power Tools, 13.14. What Can You Do with an Empty File?
end-of-input character : UNIX Power Tools, 38.4. Subshells
end-of-line processing : UNIX Power Tools, 5.11. Initializing the Terminal with tset
ENDFILE procedure (tawk) : sed & awk, 11.3.2.1. Tawk language extensions
endif command (csh) : UNIX in a Nutshell, Chapter 5, Reference: endif
"Ending delimiter missing" error : sed & awk, 2.3.1.1. Command garbled
enscript program : UNIX Power Tools, 43.22. Converting Text Files to PostScript
.enter file : UNIX Power Tools, 14.14. Automatic Setup When You Enter/Exit a Directory
enter pseudo-command (sccs) : UNIX in a Nutshell, 17.6.2. Pseudo-commands
.enter.csh script : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
.enter.sh script : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
entomb system : UNIX Power Tools, 23.9. delete: Protecting Files from Accidental Deletion
ENV variable
  Learning the Korn Shell, 3.5.2. The Environment File
  Learning the Korn Shell, 10.2.3. Types of Global Customization
  Learning the Korn Shell, A.1. The Bourne Shell
  UNIX Power Tools, 2.11. Faster ksh and bash Startup with $- Test
  UNIX Power Tools, 6.3. Predefined Environment Variables
  UNIX in a Nutshell, 4.3.3. Other Shell Variables
  command subsitution in next ksh release : Learning the Korn Shell, A.7. The Future of the Korn Shell
  in privileged mode : Learning the Korn Shell, 10.3.4. Privileged Mode
env command
  UNIX Power Tools, 6.1. What Environment Variables Are Good For
  UNIX Power Tools, 6.8. Shell Variables
  UNIX Power Tools, 14.10. Variables Help You Find Directories and Files
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
  UNIX in a Nutshell, Chapter 2, Reference: env
ENVIRON variable
  sed & awk, 8.6. System Variables That Are Arrays
  sed & awk, 8.6.2. An Array of Environment Variables
environment
  Learning the Korn Shell, 3. Customizing Your Environment
  Learning the UNIX Operating System, 1.1. Working in the UNIX Environment
  UNIX Power Tools, 38.3. Managing Processes: Overall Concepts
  modifying : UNIX Power Tools, 44.23. Reading Files with the . and source Commands
  temporary changes in : UNIX Power Tools, 13.7.2. Temporary Change of Directory and Environment
  writing into temporary files : UNIX Power Tools, 40.4. Choosing the Shell Run (We Hope) by at
environment files : Learning the Korn Shell, 3.5.2. The Environment File
  compared to .profile : Learning the Korn Shell, 3.5.2. The Environment File
  creating : Learning the Korn Shell, 3.5.2. The Environment File
  customization in next ksh release : Learning the Korn Shell, A.7. The Future of the Korn Shell
  lack of system-wide : Learning the Korn Shell, 10.2.3. Types of Global Customization
  in : Learning the Korn Shell, 10.3.4. Privileged Mode
  security holes in : Learning the Korn Shell, 10.3.2. A System Break-in Scenario
  in subshells : Learning the Korn Shell, 8.6.1. Subshell Inheritance
environment variables
  Learning the Korn Shell, 3.4. Shell Variables
  Learning the Korn Shell, 3.5.1. Environment Variables
  UNIX Power Tools, 2.12. Automatic Setups for Different Terminals
  UNIX Power Tools, 14.10. Variables Help You Find Directories and Files
  UNIX Power Tools, 45.24. A Shell Can Read a Script from its Standard Input, But...
  sed & awk, 8.6.2. An Array of Environment Variables
  UNIX in a Nutshell, 5.3.5. Environment Variables
  (see also built-in variables)
  (see also under specific variable names)
  advantages : UNIX Power Tools, 6.1. What Environment Variables Are Good For
  in Bourne shell : UNIX Power Tools, 47.2.5. Variable Syntax
  in C shell : UNIX Power Tools, 47.2.5. Variable Syntax
  changed inside redirected loops : UNIX Power Tools, 45.23. The Ins and Outs of Redirected I/O Loops
  creating : Learning the Korn Shell, 3.5.1. Environment Variables
  printing values of : UNIX in a Nutshell, Chapter 2, Reference: printenv
  read-only variables in restricted shell : Learning the Korn Shell, 10.3.1. Restricted Shell
  setting : UNIX Power Tools, 2.2.2. C Shell
  showing : Learning the Korn Shell, 3.5.1. Environment Variables
  visibility in subshells : Learning the Korn Shell, 4.1. Shell Scripts and Functions
epsffit program : UNIX Power Tools, 43.24. Other PostScript Utilities
Eqn preprocessor : UNIX in a Nutshell, 16.2. Eqn
equations
  UNIX Power Tools, 43.12.1. troff
  UNIX Power Tools, 43.12.2. TeX
  formatting in nroff/troff : UNIX in a Nutshell, 16.2. Eqn
equivalence classes : sed & awk, 3.2.4.3. POSIX character class additions
erase character
  Learning the UNIX Operating System, 1.1.7. Correcting a Mistake
  UNIX Power Tools, 5.9. Setting Your Erase, Kill, and Interrupt Characters
  UNIX Power Tools, 41.2.2. Handling Most Characters
  BACKSPACE : (see BACKSPACE key)
  DELETE : (see DEL key)
erasing : (see deleting)
EREs (extended regular expressions) : sed & awk, 3.2.4.3. POSIX character class additions
ERRNO variable
  sed & awk, 11.2.3.8. Additional variables
  UNIX in a Nutshell, 4.3.2. Built-in Shell Variables
  obsolescence in next ksh release : Learning the Korn Shell, A.7. The Future of the Korn Shell
error messages
  sed & awk, 11.2.1.4. Special filenames
  sed & awk, 12.3.4. A Function for Reporting Errors
  awk : sed & awk, 2.4.2. Error Messages
  capturing for screen : UNIX Power Tools, 42.8. Errors Erased Too Soon? Try These Workarounds
  "command garbled"
    sed & awk, 2.3.1.1. Command garbled
    sed & awk, 5.1. About the Syntax of sed Commands
  creating : UNIX Power Tools, 8.6.2. Making Error Messages
  formatting : UNIX in a Nutshell, Chapter 2, Reference: fmtmsg
  installation process : UNIX Power Tools, 52.8.2.6. An Easy Build
  program names included in : UNIX Power Tools, 44.22. Finding a Program Name; Multiple Program Names
  scrolling off screen : UNIX Power Tools, 13.4. Problems Piping to a Pager
  sed : sed & awk, 2.3.1.1. Command garbled
errors
  UNIX Power Tools, 44.9. Testing Your Success
  (see also debugging; standard error)
  Arguments too long : UNIX Power Tools, 9.20. Too Many Files for the Command Line
  "Arguments too long" : UNIX Power Tools, 9.23. Workaround for "Arguments too long" Error
  on command line
    Learning the UNIX Operating System, 1.1.7. Correcting a Mistake
    (see also troubleshooting)
  debugging : sed & awk, 10.7. Debugging
  handled in C shell : UNIX Power Tools, 47.2.7. Error Handling
  in redirected loops : UNIX Power Tools, 45.23. The Ins and Outs of Redirected I/O Loops
  "No match" : UNIX Power Tools, 15.4. What if a Wildcard Doesn't Match?
  spelling, finding (example) : sed & awk, 12.1. An Interactive Spelling Checker
  storing with logerrs script : UNIX Power Tools, 13.16. Store and Show Errors with logerrs
  syntax errors
    in numeric tests : UNIX Power Tools, 46.4. Stop Syntax Errors in Numeric Tests
    in string tests : UNIX Power Tools, 46.5. Stop Syntax Errors in String Tests
esac command (ksh, sh) : UNIX in a Nutshell, Chapter 4, Reference: esac
ESCAPE key : Learning the vi Editor, 2.1. vi Commands
  for file completion : UNIX Power Tools, 9.9. Don't Match Useless Files in Filename Completion
  ESC Z string : UNIX Power Tools, 5.5. Querying Your Terminal Type: qterm
  in vi : sed & awk, 5.6. List
escape sequences
  UNIX Power Tools, 5.8. Terminal Escape Sequences
  UNIX Power Tools, 41.9. Commands to Adjust Your Terminal
  (see also backslash)
  awk
    sed & awk, 7.6. Expressions
    sed & awk, 11.1.1. Escape Sequences
    sed & awk, B.2.5.2. Escape sequences
  backslash character and : UNIX Power Tools, 8.6.1. Portability
  copied into files : UNIX Power Tools, 51.5. Copy What You Do with script
  displaying : UNIX in a Nutshell, Chapter 2, Reference: col
  echo command interpreting : UNIX Power Tools, 46.10. A Portable echo Command
  prompt settings and : UNIX Power Tools, 7.8. Highlighting in Shell Prompts
  removing : UNIX Power Tools, 43.19. Removing Leading Tabs and Other Trivia
  writing with echo command : UNIX Power Tools, 7.6. Session Information in Your Terminal's Status Line
/etc directory
  /etc/hosts : Learning the Korn Shell, 7.2.2.3. Code blocks
  /etc/motd script : UNIX Power Tools, 2.14. motd.diff: Show New Lines in Login Messages
  /etc/passwd file
    Learning the Korn Shell, 1.7.3. Pipelines
    Learning the Korn Shell, 7.1.1. Here-documents
    Learning the Korn Shell, 7.3.1. Quoting
    Learning the Korn Shell, 7.3.2.1. The C Compiler as Pipeline
    Learning the Korn Shell, 10.3.1. Restricted Shell
    UNIX Power Tools, 1.23. File Access Permissions
    UNIX Power Tools, 50.12. Common UNIX Error Messages
    UNIX in a Nutshell, 5.2.1. Special Files
  /etc/profile file
    Learning the Korn Shell, 5.3. case
    Learning the Korn Shell, 5.4. select
    Learning the Korn Shell, 6.3.4. Type and Attribute Options
    Learning the Korn Shell, 7.2.2.1. Reading lines from files
    Learning the Korn Shell, 10.2. Environment Customization
    Learning the Korn Shell, 10.2.3. Types of Global Customization
    UNIX in a Nutshell, 4.2.1. Special Files
    (see also shell variables)
  /etc/shells file : UNIX Power Tools, 2.16. Approved Shells: Using Unapproved Login Shell
  /etc/suid_profile : Learning the Korn Shell, 10.3.4. Privileged Mode
  /etc/termcap file
    Learning the Korn Shell, 3.4.2.4. Terminal Types
    Learning the vi Editor, 7.1. Customizing vi
  /etc/ttys file : UNIX Power Tools, 2.12. Automatic Setups for Different Terminals
  /etc/ttytab file : UNIX Power Tools, 2.12. Automatic Setups for Different Terminals
eval command
  Learning the Korn Shell, 7.3.2. eval
  UNIX Power Tools, 5.3. Setting the Terminal Type When You Log In
  UNIX in a Nutshell, Chapter 4, Reference: eval
  UNIX in a Nutshell, Chapter 5, Reference: eval
  advantages : UNIX Power Tools, 8.10. eval: When You Need Another Chance
  awk compared to : UNIX Power Tools, 44.14. Putting awk, sed, etc., Inside Shell Scripts
  for constructing pipelines
    Learning the Korn Shell, 7.3.2. eval
    Learning the Korn Shell, 7.3.2.1. The C Compiler as Pipeline
  examples
    UNIX Power Tools, 45.14. Finding the Last Command-Line Argument
    UNIX Power Tools, 45.30.4. Using sed
  if-then-else in aliases : UNIX Power Tools, 10.7. How to Put if-then-else in a C Shell Alias
  role in command-line processing : Learning the Korn Shell, 7.3.2. eval
  scanning contents of variables : UNIX Power Tools, 45.17. Making a for Loop with Multiple Variables
  sed combined with : UNIX Power Tools, 45.30.4. Using sed
  shell variables and : UNIX Power Tools, 10.10. Simulated Bourne Shell Functions and Aliases
  simulating arrays : UNIX Power Tools, 45.34. Arrays in the Bourne Shell
evaluating expressions : UNIX in a Nutshell, Chapter 2, Reference: expr
ex commands
  abbreviate words (:ab) : Learning the vi Editor, 7.3.1. Word Abbreviation
  allow metacharacters (:set magic) : Learning the vi Editor, 7.1.4. Some Useful Options
  allow other .exrc files (:set exrc) : Learning the vi Editor, 7.1.3. Alternate Environments
  append to existing files (:w >>) : Learning the vi Editor, 5.3.3. Appending to a Saved File
  call in next of multiple files (:n) : Learning the vi Editor, 5.5.2. Calling In New Files
  combining with vertical bar
    Learning the vi Editor, 5.2.7. Combining ex Commands
    Learning the vi Editor, 7.3.3. Protecting Keys from Interpretation by ex
  confirm substitutions : Learning the vi Editor, 6.1. Confirming Substitutions
  context-sensitive replacement
    Learning the vi Editor, 6. Global Replacement
    Learning the vi Editor, 6.2. Context-sensitive Replacement
  copy lines (:co) : Learning the vi Editor, 5.2. Editing with ex
  define paragraphs (:set para=) : Learning the vi Editor, 3.2. Movement by Text Blocks
  define sections (:set sect=) : Learning the vi Editor, 3.2. Movement by Text Blocks
  define shiftwidth (:set sw=) : Learning the vi Editor, 7.5.1. Indentation Control
  define tabs (:set ts=) : Learning the vi Editor, 7.5.1. Indentation Control
  define window size (:set w=) : Learning the vi Editor, 7.1.1. The :set Command
  delete lines (:d) : Learning the vi Editor, 5.2. Editing with ex
  display line (:p) : Learning the vi Editor, 5.1. ex Commands
  display line numbers (:set nu)
    Learning the vi Editor, 2.2.3. Movement Within a Line
    Learning the vi Editor, 3.4. Movement by Line Number
    Learning the vi Editor, 3.4.1. The G (Go To) Command if
  display tabs (:set list) : Learning the vi Editor, 7.5.1. Indentation Control
  edit : Learning the vi Editor, 5.5. Editing Multiple Files
  edit multiple files (:e) : Learning the vi Editor, 5.5.2. Calling In New Files
  execute UNIX commands from vi : Learning the vi Editor, 7.2. Executing UNIX Commands
  filter text through UNIX command : Learning the vi Editor, 7.2.1. Filtering Text Through a Command
  for loop with : Learning the vi Editor, 7.4.1. Looping in a Shell Script
  global (:g) : Learning the vi Editor, 6. Global Replacement
  global search (:g) : Learning the vi Editor, 5.2.6. Global Searches
  here documents : Learning the vi Editor, 7.4.2. Here Documents
  ignore case (:set ic) : Learning the vi Editor, 6.3.2. Metacharacters Used in Replacement Strings
  indent input (:set ai) : Learning the vi Editor, 7.5.1. Indentation Control
  invoke on a file : Learning the vi Editor, 5.1. ex Commands
  invoke vi (:vi) : Learning the vi Editor, 5.1. ex Commands
  line addressing symbols : Learning the vi Editor, 5.2.3. Line Addressing Symbols
  map command sequence : Learning the vi Editor, 7.3.2. Using the map Command
  map function keys : Learning the vi Editor, 7.3.7. Mapping Function Keys
  match brackets (:set sm) : Learning the vi Editor, 7.5.2. A Special Search Command
  move lines (:m) : Learning the vi Editor, 5.2. Editing with ex
  move text blocks by patterns : Learning the vi Editor, 6.4.2. Block Move by Patterns
  number lines (:set nu) : Learning the vi Editor, 5.2.2. Defining a Range of Lines
  pattern matching : Learning the vi Editor, 6.3. Pattern-matching Rules
  preserve a buffer (:pre) : Learning the vi Editor, 4.2.3. Recovering a Buffer
  quick reference to
    Learning the vi Editor, A. Quick Reference
    Learning the vi Editor, C. ex commands
  quit file (:q) : Learning the vi Editor, 5.3. Saving and Exiting Files
  quit without saving edits (:q!)
    Learning the vi Editor, 1.1.2. Problems Opening Files
    Learning the vi Editor, 1.2. Quitting Without Saving Edits
    Learning the vi Editor, 5.3. Saving and Exiting Files
  read in a file (:r) : Learning the vi Editor, 5.4. Copying a File into Another File
  replace in text block : Learning the vi Editor, 6.4.2. Block Move by Patterns
  save : Learning the vi Editor, 7.3. Saving Commands
  save and exit files : Learning the vi Editor, 5.3. Saving and Exiting Files
  save in buffer : Learning the vi Editor, 7.3.9. @-Functions
  save part of a file : Learning the vi Editor, 5.3.2. Saving Part of a File
  save under new filename : Learning the vi Editor, 5.3.1. Renaming the Buffer
  scripts : Learning the vi Editor, 7.4. Using ex Scripts
    built by diff : Learning the vi Editor, 7.4.5. ex Scripts Built by diff
  search for class of words : Learning the vi Editor, 6.4.1. Search for General Class of Words
  search patterns : Learning the vi Editor, 5.2.4. Search Patterns
  set ignorecase (:set ic)
    Learning the vi Editor, 7.1.1. The :set Command
    Learning the vi Editor, 7.1.4. Some Useful Options
  set vi options
    Learning the vi Editor, 7.1. Customizing vi
    Learning the vi Editor, 7.1.1. The :set Command
  set wrapmargin (:set wm=)
    Learning the vi Editor, 2.1. vi Commands
    Learning the vi Editor, 2.2.3. Movement Within a Line
    Learning the vi Editor, 2.3.8.1. Repeat
  set wrapscan (:set ws) : Learning the vi Editor, 3.3.1. Repeating Searches
  sort text blocks : Learning the vi Editor, 7.4.3. Sorting Text Blocks: A Sample ex Script
  substitute (:s)
    Learning the vi Editor, 5.1. ex Commands
    Learning the vi Editor, 6. Global Replacement
  syntax of : Learning the vi Editor, 1. The vi Text Editor
  use from within vi : Learning the vi Editor, 5.1. ex Commands
  wrap searches (:set ws) : Learning the vi Editor, 7.1.4. Some Useful Options
  wrap words (:set wm=) : Learning the vi Editor, 7.1.4. Some Useful Options
  write (save) and quit file (:wq) : Learning the vi Editor, 5.3. Saving and Exiting Files
  write (save) and quit file (:x) : Learning the vi Editor, 5.3. Saving and Exiting Files
  write (save) file (:w) : Learning the vi Editor, 5.3. Saving and Exiting Files
  yank text between files : Learning the vi Editor, 5.5.3. Edits Between Files
ex editor
  Learning the vi Editor, 1. The vi Text Editor
  Learning the vi Editor, 5. Introducing the ex Editor
  UNIX in a Nutshell, Chapter 2, Reference: ex
  UNIX in a Nutshell, 9. The Ex Editor
  (see also ex commands)
  abbreviations
    UNIX Power Tools, 30.31. vi Word Abbreviation
    UNIX Power Tools, 31.9. Good Stuff for Your .exrc File
  appending to file : UNIX Power Tools, 30.13. Appending to an Existing File
  capitalizing words : UNIX Power Tools, 30.17. Capitalizing Every Word on a Line
  command descriptions : UNIX Power Tools, 33.4. Useful ex Commands
  confirming substitutions : UNIX Power Tools, 30.10. Confirming Substitutions in ex and vi
  counting occurrences : UNIX Power Tools, 30.16. Counting Occurrences; Stopping Search Wraps
  deleting by patterns : UNIX Power Tools, 30.14. Moving Blocks of Text by Patterns
  diff command and : UNIX Power Tools, 28.9. ex Scripts Built by diff
  file recovery : UNIX Power Tools, 30.24. vi/ex File Recovery vs. Networked Filesystems
  filtering text : UNIX Power Tools, 30.22. Filtering Text Through a UNIX Command
  global command : UNIX Power Tools, 30.9.1. Global Searches
  line addressing : UNIX Power Tools, 33.3. Line Addressing
  modelines : UNIX Power Tools, 30.19. Modelines: Bug or Feature?
  moving by patterns : UNIX Power Tools, 30.14. Moving Blocks of Text by Patterns
  multiple setup files
    UNIX Power Tools, 30.20. Multiple Editor Setup Files; Starting with a Search
    UNIX Power Tools, 30.21. Per File Setups in Separate Files
  no matches : UNIX Power Tools, 33.7. ed/ex Batch Edits: Avoid Errors When No Match
  open mode : UNIX Power Tools, 30.36. The ex Open Mode Can Be Handy
  pattern-matching metacharacters : UNIX in a Nutshell, 6.2. Metacharacters, Listed by UNIX Program
  patterns
    UNIX Power Tools, 30.9. Using Search Patterns and Global Commands
    UNIX Power Tools, 30.14. Moving Blocks of Text by Patterns
  quoting control characters : UNIX Power Tools, 31.6. Protecting Keys from Interpretation by ex
  quoting | (vertical bar) : UNIX Power Tools, 31.6. Protecting Keys from Interpretation by ex
  reverting to saved : UNIX Power Tools, 30.4. Editing Multiple Files with vi
  save as new file : UNIX Power Tools, 30.4. Editing Multiple Files with vi
  saving as new file : UNIX Power Tools, 30.11. Keep Your Original File, Write to a New File
  saving part of file : UNIX Power Tools, 30.12. Saving Part of a File
  scripting : UNIX Power Tools, 33.3. Line Addressing
  search-and-replace examples : UNIX in a Nutshell, 6.4.1. Examples of Searching and Replacing
  settings
    UNIX Power Tools, 30.6. Local Settings for vi and ex
    UNIX Power Tools, 30.18. Setting vi Options Automatically for Individual Files
  startup commands : UNIX Power Tools, 30.6. Local Settings for vi and ex
  stopping search wraps : UNIX Power Tools, 30.16. Counting Occurrences; Stopping Search Wraps
  switching between files : UNIX Power Tools, 30.4. Editing Multiple Files with vi
  transfer text between files : UNIX Power Tools, 30.5. Edits Between Files
  undoing changes : UNIX Power Tools, 30.10. Confirming Substitutions in ex and vi
  yank buffers : UNIX Power Tools, 30.5. Edits Between Files
example programs
  UNIX Power Tools, 51.11. Making an Arbitrary-Size File for Testing
  sed & awk, Sample Programs
exchange command : (see x command (sed))
exclamation point : (see ! (bang))
exec command
  Learning the Korn Shell, 9.2.1.2. exec
  UNIX Power Tools, 1.11. How the Shell Executes Other Commands
  UNIX Power Tools, 38.2. fork and exec
  UNIX in a Nutshell, Chapter 4, Reference: exec
  UNIX in a Nutshell, Chapter 5, Reference: exec
  associating file descriptors with files : UNIX Power Tools, 45.22. Handling Files Line-by-Line
  examples : UNIX Power Tools, 45.10. Removing a File Once It's Opened - for Security and Easy Cleanup
  manage file descriptors : UNIX Power Tools, 45.7. The exec Command
  replacing C shell with Bourne shell
    UNIX Power Tools, 45.6. Making Sure Your Script Runs with Bourne Shell, Without #!
    UNIX Power Tools, 45.7. The exec Command
  typing at a shell prompt : UNIX Power Tools, 38.2. fork and exec
executable files
  UNIX Power Tools, 52.8.2. Compiling Source Code
  UNIX Power Tools, 52.8.2.7. Functions, Libraries, and Header Files
  (see files, executable)
  displaying : UNIX Power Tools, 45.5. A File That Shows Itself... and What #! Does
  errors caused by : UNIX Power Tools, 50.12. Common UNIX Error Messages
  executing without showing #! : UNIX Power Tools, 45.5. A File That Shows Itself... and What #! Does
  making executable by using # : UNIX Power Tools, 45.4. Fun with #!
  permissions on
    UNIX Power Tools, 44.2. Writing a Simple Shell Program
    (see also permissions)
  strip command and : UNIX Power Tools, 24.13. Save Space in Executable Files with strip
  testing : UNIX Power Tools, 44.4. Testing How Your System Executes Files
execute permission
  Learning the UNIX Operating System, 3.1.8.1. ls
  UNIX Power Tools, 22.2. Tutorial on File and Directory Permissions
  UNIX Power Tools, 22.19. Shell Scripts Must be Readable and (Usually) Executable
  without read permission : UNIX Power Tools, 22.12. A Directory that People Can Access but Can't List
executed files, shared objects for : UNIX in a Nutshell, Chapter 2, Reference: ldd
executing commands
  after logout : UNIX in a Nutshell, Chapter 2, Reference: nohup
  of lower priority : UNIX in a Nutshell, Chapter 2, Reference: nice
  wait between : UNIX in a Nutshell, Chapter 2, Reference: sleep
execution statistics, report summarizing : UNIX Power Tools, 38.5. The ps Command
EXINIT environment variable
  Learning the vi Editor, 7.1. Customizing vi
  UNIX Power Tools, 6.3. Predefined Environment Variables
  UNIX Power Tools, 6.10. Running a Command with a Temporarily Different Environment
  UNIX Power Tools, 10.2.2. Using More Complex Aliases
  UNIX Power Tools, 30.6. Local Settings for vi and ex
  UNIX Power Tools, 30.35. Out of Temporary Space? Use Another Directory
  UNIX in a Nutshell, 5.3.5. Environment Variables
exit command/statement
  Learning the Korn Shell, 1.4. Getting the Korn Shell
  Learning the Korn Shell, 1.5. Interactive Shell Use
  Learning the Korn Shell, 5.1.1.1. Return
  Learning the Korn Shell, 8.4.2. Process ID Variables and Temporary Files
  Learning the UNIX Operating System, 1.1.8. Logging Out
  UNIX Power Tools, 44.11. Set Exit Status of a Shell (Script)
  sed & awk, 8.3. Other Statements That Affect Flow Control
  UNIX in a Nutshell, Chapter 4, Reference: exit
  UNIX in a Nutshell, Chapter 5, Reference: exit
  .cshrc file : UNIX Power Tools, 2.9. Speeding Up Your C Shell with set prompt Test
  effect on subshells : UNIX Power Tools, 38.4. Subshells
  examples : UNIX Power Tools, 44.5. Test String Values with Bourne Shell case
  redirected loops using : UNIX Power Tools, 45.23. The Ins and Outs of Redirected I/O Loops
  to end scripts : UNIX Power Tools, 51.5. Copy What You Do with script
exit command (awk)
  UNIX Power Tools, 33.11.7. Alphabetical Summary of Commands
  UNIX in a Nutshell, Chapter 11, Reference: exit
exit command (lpc) : UNIX Power Tools, 43.3. Printer Control with lpc
.exit file : UNIX Power Tools, 14.14. Automatic Setup When You Enter/Exit a Directory
exit status
  Learning the Korn Shell, 5.1.1. Exit Status and Return
  Learning the Korn Shell, 5.1.3.1. String comparisons
  Learning the Korn Shell, 9.2.3.4. Break conditions
  Learning the Korn Shell, 9.2.5. Exercises
  UNIX Power Tools, 44.8. Test Exit Status with the if Statement
  UNIX in a Nutshell, Chapter 2, Reference: test
  (see also status variable)
  background jobs : UNIX Power Tools, 44.7. Exit Status of UNIX Processes
  commands
    UNIX Power Tools, 44.7. Exit Status of UNIX Processes
    UNIX in a Nutshell, Chapter 2, Reference: true
  conventional values : Learning the Korn Shell, 5.1.1. Exit Status and Return
  in job status messages : Learning the Korn Shell, 8.1. Process IDs and Job Numbers
  logical combinations : Learning the Korn Shell, 5.1.2. Combinations of Exit Statuses
  of loops : UNIX Power Tools, 45.19. A while Loop with Several Loop Control Commands
  nonzero : UNIX Power Tools, 46.9. If Command Doesn't Return a Status, Test the Error Messages
  pipelines : UNIX Power Tools, 44.7. Exit Status of UNIX Processes
  redirected loops : UNIX Power Tools, 45.23. The Ins and Outs of Redirected I/O Loops
  returned by processes : UNIX Power Tools, 38.3. Managing Processes: Overall Concepts
  testing
    UNIX Power Tools, 44.8. Test Exit Status with the if Statement
    UNIX Power Tools, 44.10. Loops That Test Exit Status
    UNIX Power Tools, 46.9. If Command Doesn't Return a Status, Test the Error Messages
  trapping when non-0 : Learning the Korn Shell, 9.1.2.2. ERR
  values for expr
    UNIX Power Tools, 45.28. Quick Reference: expr
    UNIX Power Tools, 45.29. Testing Characters in a String with expr
  zero
    UNIX Power Tools, 44.10. Loops That Test Exit Status
    UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator
    UNIX Power Tools, 46.9. If Command Doesn't Return a Status, Test the Error Messages
.exit.csh script : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
exiting
  UNIX session : Learning the UNIX Operating System, 1.1.8. Logging Out
  X Window System : Learning the UNIX Operating System, 2.7. Quitting
.exit.sh script : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
exp() : sed & awk, 9.1.1. Trigonometric Functions
exp command (awk)
  UNIX Power Tools, 33.11.7. Alphabetical Summary of Commands
  UNIX in a Nutshell, Chapter 11, Reference: exp
expand command
  UNIX Power Tools, 41.4.1. TAB Is Just Another Character to UNIX
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
expanding files
  UNIX in a Nutshell, Chapter 2, Reference: unpack
  (see also pack command; pcat command)
Expect program
  UNIX Power Tools, 9.26. Expect
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
  testing interactive programs : UNIX Power Tools, 9.26.3. Testing: A Story
exponentiation
  sed & awk, 7.6. Expressions
  sed & awk, 9.1.1. Trigonometric Functions
  sed & awk, 11.1.2. Exponentiation
  ** operator : sed & awk, 7.6. Expressions
  ^ operator : sed & awk, 7.6. Expressions
export command
  Learning the Korn Shell, 3.5.1. Environment Variables
  Learning the Korn Shell, 4.1. Shell Scripts and Functions
  Learning the Korn Shell, 6.3.4. Type and Attribute Options
  Learning the Korn Shell, 10.2.3. Types of Global Customization
  UNIX in a Nutshell, Chapter 4, Reference: export
expr command
  Learning the Korn Shell, Summary of Korn Shell Features
  Learning the Korn Shell, 6.2. Integer Variables and Arithmetic
  Learning the Korn Shell, A.1. The Bourne Shell
  UNIX Power Tools, 45.28. Quick Reference: expr
  UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
  UNIX in a Nutshell, Chapter 2, Reference: expr
  advantages
    UNIX Power Tools, 45.30.1. Matching with expr
    UNIX Power Tools, 49.1. bc: Simple Math at the Shell Prompt
  alternatives to : UNIX Power Tools, 45.11. The Multipurpose jot Command
  arguments : UNIX Power Tools, 45.30.1. Matching with expr
  as calculator
    UNIX Power Tools, 49.1. bc: Simple Math at the Shell Prompt
    UNIX Power Tools, 49.6. Quick Arithmetic with expr
  disadvantages : UNIX Power Tools, 45.30.1. Matching with expr
  examples : UNIX Power Tools, 45.28. Quick Reference: expr
  exit status values
    UNIX Power Tools, 45.28. Quick Reference: expr
    UNIX Power Tools, 45.29. Testing Characters in a String with expr
  jot compared to : UNIX Power Tools, 45.11. The Multipurpose jot Command
  listing command-line options : UNIX Power Tools, 45.30.1. Matching with expr
  loops using : UNIX Power Tools, 45.11. The Multipurpose jot Command
  matching character strings : UNIX Power Tools, 45.30.1. Matching with expr
  operators : UNIX Power Tools, 45.28. Quick Reference: expr
  syntax
    UNIX Power Tools, 45.28. Quick Reference: expr
    UNIX Power Tools, 45.28.1. Examples
  testing character strings : UNIX Power Tools, 45.29. Testing Characters in a String with expr
  variables : UNIX Power Tools, 45.28.1. Examples
expressions
  sed & awk, 3.1. That's an Expression
  sed & awk, B.2.5. Expressions
  awk : (see awk scripting language)
  in C shell
    UNIX Power Tools, 47.4.2. Expressions
    UNIX Power Tools, 47.4.4. Examples
    UNIX in a Nutshell, 5.4. Expressions
  conditional : UNIX Power Tools, 44.8. Test Exit Status with the if Statement
  evaluating : UNIX in a Nutshell, Chapter 2, Reference: expr
  executing as commands : sed & awk, 10.3. The system() Function
  regular : (see regular expressions)
expunge program : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
exrc file (on disc) : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
.exrc file
  Learning the vi Editor, 7.1. Customizing vi
  Learning the vi Editor, 7.1.2. The .exrc File
  UNIX Power Tools, 4.9. Setting Up vi with the .exrc File
  UNIX Power Tools, 30.6. Local Settings for vi and ex
  UNIX Power Tools, 30.18. Setting vi Options Automatically for Individual Files
  UNIX Power Tools, 31.9. Good Stuff for Your .exrc File
EXSTAT environment variable : UNIX Power Tools, 30.20. Multiple Editor Setup Files; Starting with a Search
exstr command : UNIX in a Nutshell, Chapter 2, Reference: exstr
exta, extb rates : UNIX Power Tools, 41.2.1. How We Made It This Far (Back?)
extended regular expressions
  UNIX Power Tools, 26.4.11. Extended Regular Expressions
  sed & awk, 3.2.4.3. POSIX character class additions
extensions
  common awk : sed & awk, 11.2.1. Common Extensions
  filename
    UNIX Power Tools, 1.17. Filename Extensions
    UNIX Power Tools, 4.6. Naming Files
  gawk : sed & awk, 11.2.3. GNU awk (gawk)
  mawk : sed & awk, 11.2.4. Michael's awk (mawk)
  tawk : sed & awk, 11.3.2. Thompson Automation awk (tawk)
extent of matching : sed & awk, 3.2.12.1. The extent of the match
"external control" rates : UNIX Power Tools, 41.2.1. How We Made It This Far (Back?)
external commands
  UNIX Power Tools, 1.10. Internal and External Commands
  UNIX Power Tools, 7.4. Faster Prompt Setting with Built-Ins
  executing : UNIX Power Tools, 1.11. How the Shell Executes Other Commands
  setting variables with : UNIX Power Tools, 7.12. External Commands Send Signals to Set Variables
extracting file contents : sed & awk, 4.4.3. Extracting Contents of a File
extractres program : UNIX Power Tools, 43.24. Other PostScript Utilities

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