UNIX Shells by Example (4th Edition)
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background bg command commands Bash Bourne shell C shell Korn shell job signal jobs Bash C shell Korn shell loops Bash Bourne shell Korn shell suspend key sequence backslash Bourne shell 2nd escaping metacharacters Korn shell 2nd metacharacters Bash C shell grep bang history reexecuting history commands Bash C shell bannerutility basename utility bases and integers Bash Korn shell Bash .bash_login file .bash_profile file .bashrc file .inputrc file /etc/bashrc file /etc/profile file ~/.bash-logout file ~/.bash_profile file ~/.profile file 2nd aliases creating deleting listing arguments arithmetic 2nd arrays 2nd asterisk backslash bases bash utility BASH_ENV variable command line 2nd command line history commands background built-in 2nd changing order of processing conditional execution grouping looping looping control commands order of processing re-executing set command shopt command substitution 2nd comments conditions 2nd constructs directory stack, manipulating dot command 2nd double quotes editors, selecting environment error messages 2nd example script execution, preventing exercises exit status exit status, testing filename completion files, testing floating-point arithmetic flow control functions 2nd 3rd defining exported introduction 2nd listing unsetting global variables hash command help command history accessing commands command line if command if constructs initialization files input input and here document integers invocation options invocation options, debugging job control let command local variables loops background internal field separator menus here document select command metacharacters 2nd escaping quoting multiple commands operators 2nd options 2nd 3rd origin 2nd output pipes positional parameters prompts escape sequences primary prompt secondary prompt question mark redirection 2nd 3rd scripts creating debugging executable, making set command shbang line shell, changing at command line shopt command signals, trapping single quotes source command 2nd specifying shell to use square brackets metacharacter standard input standard output startup stderr stdin stdout subshells syntax and constructs 2nd [See Korn shell] variables 2nd extracting values from null values PATH variable wildcards BASH_ENV variable batch utility bc utility bdiff utility BEGIN patterns 2nd beginning of line anchor Bell Labs bg command bibliography binary operators binary permission modes bindkey command bmetacharacter boot scripts 2nd cron boot script daemons example kernel and init run level single- user mode Bourne Again shell [See also Bash] history of Bourne shell 2nd [See also shells ] .profile file 2nd /etc/profile file arguments arithmetic 2nd arrays asterisk backslash 2nd command line 2nd 3rd multiple commands parsing commands background built-in conditional execution looping looping control commands substitution 2nd comments conditions 2nd constructs dot command double quotes environment environment variables error messages 2nd example script exercises exit status exit status, testing expr command files name substitution testing 2nd floating-point arithmetic flow control for loop functions 2nd introduction 2nd traps hash command history of if command if constructs initialization files input and here document invocation options local variables loops background internal field separator nested menus and here document metacharacters escaping quoting null values, checking operators output overview parameters $* versus $@ positional 2nd pipes programming 2nd prompts primary prompt secondary prompt question mark redirection 2nd 3rd scripts creating debugging executable, making set command shbang line signals, trapping single quotes 2nd 3rd square brackets metacharacter standard I/O standard input standard input and exec command standard output startup subshells substitution and filenames syntax and constructs test command, using in Korn shell 2nd until loop using 2nd variable expansion variables environment extracting values from local PATH variable printing set special unsetting while loop wildcards Bourne, Stephen braces [See also curly braces] brace expansion in Bash metacharacter brackets bracketed character class and POSIX 2nd metacharacter 2nd 3rd Bash Bourne shell C shell egrep GNU egrep GNU grep 2nd grep Korn shell sed branching Bash debugging Korn shell break command Bash Bourne shell C shell Korn shell BSD GNU egrep variants GNU grep variants buffer and sed built-in commands Bash 2nd 3rd Bourne shell C shell command type evaluation order defined help command, Bash Korn shell TC shell built-in functions arithmetic 2nd awk 2nd 3rd built-in variables awk 2nd local
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