[LINUX] Shell script basics # 2

Shell script basics # 2

Function definition format

There are three definitions.

function <Function name> ()
{
processing
}

#Function definition without parentheses
function <Function name>
{
processing
}

#Function definition omitting function
<Function name> ()
{
processing
}

Here is a simple example. The function name is function1 and the process displays the current date.

[[email protected] work]$ cat shellTest.sh
#!/bin/bash

function1 ()
{
	date
}

function1

[[email protected] work]$ ./shellTest.sh
Fri Sep 25 16:46:29 PDT 2020

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