Library: GNU bash Command Reference (Darwin 9.0): shopt

Library: GNU bash Command Reference (Darwin 9.0)

shopt

shopt: shopt [-pqsu] [-o long-option] optname [optname...]

Toggle the values of variables controlling optional behavior.
The -s flag means to enable (set) each OPTNAME; the -u flag
unsets each OPTNAME.  The -q flag suppresses output; the exit
status indicates whether each OPTNAME is set or unset.  The -o
option restricts the OPTNAMEs to those defined for use with
`set -o'.  With no options, or with the -p option, a list of all
settable options is displayed, with an indication of whether or
not each is set.

Fun for Photographers