#! /bin/sh for FRUIT in apple banana pear; do echo "I like $FRUIT" done
#! /bin/sh echo "Enter password:" read TRY while [ "$TRY" != "secret" ]; do echo "Sorry, try again" read TRY done
shell编程之循环语句
原文：https://www.cnblogs.com/nul1/p/11631446.html
