linux arguments variables usage
#! /bin/bash
if [ $# -ne 1 ];then
echo "please input one argument:"
exit 1
fi
if [ $1 -eq 1 ];then
echo "you input is $1."
elif [ $1 -eq 2 ];then
echo "you input is $1."
else
echo "you input is wrong."
exit 2
fi
#! /bin/bash
if [ $# -ne 1 ];then
echo "please input one argument:"
exit 1
fi
if [ $1 -eq 1 ];then
echo "you input is $1."
elif [ $1 -eq 2 ];then
echo "you input is $1."
else
echo "you input is wrong."
exit 2
fi