这是我的bash脚本,非常简单,目前没有任何内容:
#!/bin/bash
NO_ARGUMENTS=0
ARG_ERROR=10
if [ $# -eq "$NO_ARGUMENTS" ]
then
echo "Usage: `basename $0` options (-h -C -m)"
exit $ARG_ERROR
fi
helpscreen()
{
echo
echo "========================"
echo "Help Screen:"
echo "Available Arguments:"
echo "-h - Displays this screen"
echo "-C - Complete Install"
echo "-m - Minimal Install"
echo "========================="
echo
}
completeinstall()
{
echo "Complete Install Initiating"
}
minimalinstall()
{
echo "Minimal Install Initiating"
}
while getopts ":hCm" Option
do
case $Option in
h) helpscreen;;
C) completeinstall;;
m) minimalinstall;;
*) echo "Option Not Available.";;
esac
done
exit
正如您所看到的,只有在选择./test.sh -h,-C或-m时才会运行选项。我的问题是用户可以选择-Cm并让它运行完整和最小安装。如何编辑此项以阻止此类事件发生/限制选项。
答案 0 :(得分:1)
不要循环,因为你只关心一个选项。
getopts ":hCm" Option
case $Option in
h) helpscreen;;
C) completeinstall;;
m) minimalinstall;;
*) echo "Option Not Available.";;
esac
或者为每个案例添加break
。
while getopts ":hCm" Option
do
case $Option in
h) helpscreen; break;;
C) completeinstall; break;;
m) minimalinstall; break;;
*) echo "Option Not Available.";;
esac
done
exit