更新时间:2022-06-18 04:30:26
它被称为 shebang,它告诉父 shell 应该使用哪个解释器来执行脚本.
It's called a shebang, and tells the parent shell which interpreter should be used to execute the script.
#!/bin/sh <--------- bourne shell compatible script
#!/usr/bin/perl <-- perl script
#!/usr/bin/php <--- php script
#!/bin/false <------ do-nothing script, because false returns immediately anyways.
大多数脚本语言倾向于将以#
开头的行解释为注释,并且会忽略下面的!/usr/bin/whatever
部分,否则可能会导致解释语言中的语法错误.
Most scripting languages tend to interpret a line starting with #
as comment and will ignore the following !/usr/bin/whatever
portion, which might otherwise cause a syntax error in the interpreted language.