#!/bin/bash
for var in "$*"; do
echo "hello world in first for cycle"
for var1 in *; do
echo "hello world in second for cycle"
for var2 in "$PWD"; do
echo "hello world in third for cycle"
echo "$var2"
done
echo "$var1"
done
done
echo "the arguments is $var"
#!/bin/bash
touch file1
rm -f file2
echo "please input:"
read var
while [ -f file1 ]; do
echo "this is in while cycle"
case $var in
1)
echo "begin delete file1"
rm -rf file1
echo "file1 is deleted"
break;;
2)
echo "create file2"
touch file2
echo "file2 is created"
break;;
*)
echo "input error"
break;;
esac
done