Main Index

An italic page number such as 123 indicates a definition. A light page number such as 456 indicates a brief mention. Page numbers followed by the letter t refer to tables. Only variables that must always appear with a leading dollar sign are indexed with a leading dollar sign. Other variables are indexed without a leading dollar sign.

Symbols

–– argument 147, 989

^ in regular expressions 1142

^ quick substitution character 384

, (comma) operator 1061

; control operator 162, 341, 1063

;; control operator 1006, 1063

: (null) builtin 1037, 1049

:– substitutes default values for a variable 1037

::1 (IP address) 507

:? sends to standard error an error message for a variable 1038

:= assigns default values for a variable 1037

! (NOT) Boolean ...

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