为了在处理后捕获所有剩余的参数getopts
,一个好的解决方案是shift
(删除)所有处理过的参数(变量$OPTIND
)并将剩余的参数($@
)分配给特定的变量。简短的回答:
shift $(($OPTIND - 1))
remaining_args="$@"
长示例:
#!/bin/bash
verbose=false
function usage () {
cat <<EOUSAGE
$(basename $0) hvr:e:
show usage
EOUSAGE
}
while getopts :hvr:e: opt
do
case $opt in
v)
verbose=true
;;
e)
option_e="$OPTARG"
;;
r)
option_r="$option_r $OPTARG"
;;
h)
usage
exit 1
;;
*)
echo "Invalid option: -$OPTARG" >&2
usage
exit 2
;;
esac
done
echo "Verbose is $verbose"
echo "option_e is \"$option_e\""
echo "option_r is \"$option_r\""
echo "\$@ pre shift is \"$@\""
shift $((OPTIND - 1))
echo "\$@ post shift is \"$@\""
这将输出
$ ./test-getopts.sh -r foo1 -v -e bla -r foo2 remain1 remain2
Verbose is true
option_e is "bla"
option_r is " foo1 foo2"
$@ pre shift is "-r foo1 -v -e bla -r foo2 remain1 remain2"
$@ post shift is "remain1 remain2"