Shell Foundation II

1.shell Script

New text, suffix sh, for example: abc.sh

Attention:

The first line in the script needs to write #! /bin/bash

#! Specify how to use the interpreter to execute the source code

# indicates a comment

Attention:

PHP can also write shell scripts

2.shell Script Execution

One, give the script executable permissions

chmod +x./test.sh #使用脚本执行

./test.sh #执行脚本

The shell interpreter type must be specified in the first line of the script

Second, execute using shell interpreter (not recommended)

Do not need to give permission, directly can execute

Bash test.sh

Or

SH test.sh

This does not require the Shell interpreter type to be specified on the first line of the script

Shell Foundation II