shell编程之echo指令篇

#!/bin/bash #echo 命令是用于字符串输出 #格式： echo string #1.显示普通字符串 echo "It is a echo test" #这里双引号能够省略 echo It is a echo test #2.显示转义字符 echo "\"It is a test\"" #3.显示变量 read name echo "$name It is a ach

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