How to support both short and long options at the same time in bash? [duplicate]
getopt supports long options.
http://man7.org/linux/man-pages/man1/getopt.1.html
Here is an example using your arguments:
#!/bin/bashOPTS=`getopt -o axby -l long-key: -- "$@"`if [ $? != 0 ]then exit 1fieval set -- "$OPTS"while true ; do case "$1" in -a) echo "Got a"; shift;; -b) echo "Got b"; shift;; -x) echo "Got x"; shift;; -y) echo "Got y"; shift;; --long-key) echo "Got long-key, arg: $2"; shift 2;; --) shift; break;; esacdoneecho "Args:"for argdo echo $argdoneOutput of $ foo -ax --long-key val -b -y SOME FILE NAMES:
Got aGot xGot long-key, arg: valGot bGot yArgs:SOMEFILENAMES