如何在 bash 中同时支持短选项和长选项？
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How to support both short and long options at the same time in bash?
提问by Xiè Jìléi
I want to support both short and long options in bashscripts, so one can:
我想在bash脚本中同时支持短选项和长选项，因此可以：
$ foo -ax --long-key val -b -y SOME FILE NAMES
is it possible?
是否可以？
回答by Brian Clements
getoptsupports long options.
getopt支持长选项。
http://man7.org/linux/man-pages/man1/getopt.1.html
http://man7.org/linux/man-pages/man1/getopt.1.html
Here is an example using your arguments:
这是使用您的参数的示例：
#!/bin/bash
OPTS=`getopt -o axby -l long-key: -- "$@"`
if [ $? != 0 ]
then
exit 1
fi
eval set -- "$OPTS"
while true ; do
case "" 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: "; shift 2;;
--) shift; break;;
esac
done
echo "Args:"
for arg
do
echo $arg
done
Output of $ foo -ax --long-key val -b -y SOME FILE NAMES:
的输出$ foo -ax --long-key val -b -y SOME FILE NAMES：
Got a
Got x
Got long-key, arg: val
Got b
Got y
Args:
SOME
FILE
NAMES
