linux if_else
#!/bin/bash read -p "input:" yn if [ $yn == 'y' ]; then echo "yes" exit 0 fi if [ $yn == 'n' ]; then echo "no" exit 0 fi
if_elif_else_fi
#!/bin/bash read -p "input:" yn if [ $yn == 'y' ]; then echo "yes" exit 0 elif [ $yn == 'n' ]; then echo "no" exit 0 else echo "error" fi exit 0