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- set [ +-options ] [ +-o option name ] ... [ -A [name] ] [
- arg ] ...
- Set the options for the shell and/or set the posi-
- tional parameters, or declare an array. For the
- meaning of the flags, see OPTIONS above. Flags may
- be specified by name using the -o option. If the
- -A flag is specified, name is set to an array con-
- taining the given args; if no name is specified,
- all arrays are printed. Otherwise the positional
- parameters are set. If no arguments are given,
- then the names and values of all parameters are
- printed on the standard output. If the only argu-
- ment is +, the names of all parameters are printed.
-
- unset [ -m ] name ...
- Each named parameter is unset. If the -m flag is
- specified the arguments are taken as patterns
- (should be quoted) and all parameters with matching
- names are unset.
-