Index

• action (trap)
• alias built-in
• alias substitution
• allexport shell option
• and-or list
• argument
• arithmetic expansion
• assignment
• background process group
• backslash escape
• bg built-in
• break built-in
• built-in utility
• case command
• cd built-in
• CDPATH variable
• character class
• child process
• clobber shell option
• cmdline shell option
• collating element
• colon (:) built-in
• command
• command built-in
• command prompt
• command search
• command string mode
• command substitution
• compound command
• condition (trap)
• continue built-in
• control terminal
• current job
• custom action
• declaration utilities
• default action
• delimiter (here-document)
• dollar single quote
• double quote
• elective built-in
• empty field removal
• ENV variable
• environment variable
• equivalence class
• errexit shell option
• eval built-in
• exec built-in
• exec shell option
• exit built-in
• exit status
• EXIT trap
• export built-in
• external utility
• false built-in
• fg built-in
• field
• field splitting
• file descriptor
• file mode
• file mode creation mask
• foreground process group
• function
• getopts built-in
• glob shell option
• globbing
• grouping
• hard limit
• hashondefinition shell option
• here-document
• HOME variable
• if command
• IFS variable
• ignore
• ignoreeof shell option
• interactive shell
• interactive shell option
• job
• job control
• job ID
• job list
• job number
• jobs built-in
• keyword
• kill built-in
• length modifier
• line continuation
• LINENO variable
• list
• literal (pattern matching)
• local variable
• log shell option
• login shell option
• mandatory built-in
• modifier
• monitor shell option
• noallexport shell option
• noclobber shell option
• nocmdline shell option
• noerrexit shell option
• noexec shell option
• noglob shell option
• nohashondefinition shell option
• noignoreeof shell option
• nointeractive shell option
• nolog shell option
• nologin shell option
• nomonitor shell option
• nonotify shell option
• nopipefail shell option
• noposixlycorrect shell option
• nostdin shell option
• notify shell option
• nounset shell option
• noverbose shell option
• novi shell option
• noxtrace shell option
• OLDPWD variable
• operand
• operator
• OPTARG variable
• OPTIND variable
• option
• option, shell
• parameter
• parameter expansion
• parent process
• PATH variable
• pathname expansion
• pattern matching notation
• pipefail shell option
• pipeline
• positional parameter
• POSIX
• posixlycorrect shell option
• PPID variable
• previous job
• process
• process group
• prompt
• PS1 variable
• PS2 variable
• PS4 variable
• pwd built-in
• PWD variable
• quote removal
• quoting
• read built-in
• readonly built-in
• read-only variable
• redirection
• reserved word
• return built-in
• session
• set built-in
• shell error
• shell execution environment
• shell option
• shift built-in
• signal
• simple command
• single quote
• soft limit
• source (.) built-in
• special built-in
• special parameter
• standard error
• standard input
• standard input mode
• standard output
• stdin shell option
• subshell
• substitutive built-in
• switch modifier
• terminal
• tilde expansion
• times built-in
• token
• trap
• trap built-in
• trim modifier
• true built-in
• type built-in
• typeset built-in
• ulimit built-in
• umask built-in
• unalias built-in
• unset built-in
• unset shell option
• utility
• variable
• verbose shell option
• vi shell option
• wait built-in
• word
• word expansion
• working directory
• xtrace shell option

Symbols

• !! (literal ! in prompt)
• ! special parameter
• ! (history number in prompt)
• ! (command negation)
• "…" (quoting)
• # special parameter
• $"…" (quoting)
• $((…)) (arithmetic expansion)
• $(…) (command substitution)
• $ special parameter
• $ (default prompt)
• ${…} (parameter expansion)
• %, %%, %+, %-, %?, %… (job ID)
• && (and-or list)
• & (asynchronous command)
• '…' (quoting)
• () (function definition)
• (…) (case command pattern)
• (…) (subshell command)
• (…) (array definition)
• * special parameter
• * (pattern)
• + (current job)
• -- (option-operand separator)
• - special parameter
• - (option prefix)
• - (default trap action)
• - (previous job)
• . built-in
• 0 special parameter
• : built-in
• ;;, ;&, ;;&, ;| (case branch separator)
• ; (command sequence)
• <, <&, <>, <<, <<-, <<<, <( (redirection)
• =(…) (array assignment)
• = (variable assignment)
• >, >&, >|, >>, >>|, >( (redirection)
• ? special parameter
• ? (pattern)
• @ special parameter
• […], [!…], [^…], [:…:], [.….], [=…=] (pattern)
• […] (job number)
• \ (quoting)
• `…` (command substitution)
• { … } (braced command group)
• | (pipeline)
• || (and-or list)
• ~ (tilde expansion)