今天看学习了getopets总结下结果:
作用:用这个东东可以打命令一样 <命令 -选项 参数>
#!/bin/bash while getopts xyz: args 2> /dev/null do case $args in x) echo " you entered -x";; y) echo " you entered -y";; z) echo " you entered -z"; echo " \$OPTARG is $OPTARG ";; \?) echo "Usage opts4 [-xy] [-z arguments]"; exit 1;; esac done echo "\OPTIND is 1. \OPTIND is $OPTIND. `expr $OPTIND - 1`. ";