shell案例

set -x
n=1
while [ 10 -gt $n ]
do
echo "$n"
n=`expr $n + 1`
done

for variables in list_of_iterms
do
command1
command2
done

world=$1
if [ -n "$world" ];then
echo "world长度大于零"
else
if [ ! -n "$world" ]
then
echo "world长度小于零"
fi
fi
case $world in
1)
echo "您输入的是1"
;;
2)
echo "您输入的是2"
;;
esac

echo "请输入"
read name
echo "My name is $name"

myfunction(){
        echo "$*"
        sum=0
        for i in $*
        do
        sum=`expr $i + $sum`
        done
        return $sum
}
myfunction $*
value=$?
echo $value