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Index: Symbols and Numbers

!
- built-in variable : Process ID Variables and Temporary Files
- keyword in next release : The Future of the Korn Shell
- negating a condition test : File Attribute Checking
- negation in character sets : Filenames and Wildcards
- POSIX shell keyword : The IEEE 1003.2 POSIX Shell Standard
- regular expression operator
- - Regular expression basics
  - Korn shell versus awk/egrep regular expressions
#
- ## pattern-matching operator
- - Pattern-matching Operators
  - Arithmetic Variables and Assignment
- built-in variable : Positional Parameters
- comments : Syntax of String Operators
- length operator : Length Operator
- pattern-matching operator
- size of an array : Arrays
$
- $' ANSI C string delimiter in next release : The Future of the Korn Shell
- $(( )) : (see arithmetic expressions)
- built-in variable
- - The History File
  - Process ID Variables and Temporary Files
%
- %% pattern-matching operator
- pattern-matching operator
- specifying jobs
& : (see background jobs)
&&
- for condition tests
- - File Attribute Checking
  - The Bourne Shell
- for exit statuses
- for condition tests : Code blocks
> : I/O Redirection
< : I/O Redirection
" (weak quotes) : Quoting
(( )) : (see condition tests, arithmetic)
*
- accessing entire array : Arrays
- as default in case statement : case
- built-in variable : Positional Parameters
- - as default list in for statement : for
  - as default list in select statement : select
- regular expression operator
- - Regular expression basics
  - Korn shell versus awk/egrep regular expressions
- wildcard
- - Filenames and Wildcards
  - Breakpoints
+
- regular expression operator
- - Regular expression basics
  - Korn shell versus awk/egrep regular expressions
- current directory : Changing working directories
- to hide files : Filenames and Wildcards
- to run a script : Shell Scripts and Functions
(directory) : Changing working directories
:
- :+
- - Syntax of String Operators
  - for
- :-
- := : Syntax of String Operators
- :?
- - Syntax of String Operators
  - Advanced Examples: pushd and popd
- no-op command : trap
;
- ;; in case statement : select
- statement separator
?
- built-in variable
- regular expression operator
- - Regular expression basics
  - Korn shell versus awk/egrep regular expressions
- wildcard
- - Filenames and Wildcards
  - Korn shell versus awk/egrep regular expressions
@
- built-in variable : Positional Parameters
- preserving whitespace : Arrays
- regular expression operator
[ ] : (see condition tests, old syntax)
[ ] (wildcard)
- Filenames and Wildcards
- Korn shell versus awk/egrep regular expressions
[[ ]] : (see condition tests)
(backslash) : Backslash-escaping
- as continuation characters : Continuing Lines
- for quoting quote marks : Quoting Quotation Marks
" (weak quotes) : Variables and Quoting
^
- matching beginning of line in regular expressions
- - Moving Around in the History File
  - Installing the Korn Shell as the Standard Shell
- as pipe character in Bourne shell
- - Installing the Korn Shell as the Standard Shell
  - The Bourne Shell
` (grave accent) : The Future of the Korn Shell
- archaic command substitution delimiter
- - Command Substitution
  - The Bourne Shell
  - obsolescence in next release : The Future of the Korn Shell
|
- |&, background job with two-way pipes
- - Coroutines with Two-way Pipes
  - Two-way Pipes Versus Standard Pipes
- || for condition tests
- - File Attribute Checking
  - The Bourne Shell
- || for exit statuses
- as case pattern separator : case
- pipe
~ (tilde)
- Tilde notation
- Command-line Processing
- Quoting
- The Bourne Shell
- The IEEE 1003.2 POSIX Shell Standard
- in public domain Korn shell : pdksh
- within double quotes : Variables and Quoting
- within variable expressions : The Future of the Korn Shell

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