CmdID

CmdID / Commands

getopt

Outputs command line with recognized OPTIONS character arguments moved to front, then "--", then non-option arguments. toybox

On Linux

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Linux

from the toybox, 0BSD

Outputs command line with recognized OPTIONS character arguments moved to front, then "--", then non-option arguments. Returns 1 if unknown options. OPTIONS followed by : take an argument, or :: for optional arguments (which must be attached, ala -xblah or --long=blah).

getopt [-aTu] [-lo OPTIONS] [-n NAME] [OPTIONS] ARG...
-aAllow long options starting with a single -
-l OPTIONSLong OPTIONS (repeated or comma separated)
-n NAMECommand NAME for error messages
-o OPTIONSShort OPTIONS (instead of using first argument)
-TTest whether this is a modern getopt
-uUnquoted output (default if no other options set) $ getopt -l long:,arg:: abc command --long -b there --arg
--long'-b' --arg '' -- 'command' 'there'

Linux

from tldr-pages, CC BY 4.0

Parse command-line arguments.

Parse optional verbose/version flags with shorthands

getopt --options vV --longoptions verbose,version -- --version --verboseIdentify

Add a --file option with a required argument with shorthand -f

getopt --options f: --longoptions file: -- --file=somefileIdentify

Add a --verbose option with an optional argument with shorthand -v, and pass a non-option parameter arg

getopt --options v:: --longoptions verbose:: -- --verbose argIdentify

Accept a -r and --verbose flag, a --accept option with an optional argument, and add a --target with a required argument option with shorthands

getopt --options rv::s::t: --longoptions verbose,source::,target: -- -v --target targetIdentify