Test methods for Shell custom functions

A shell script is typically a one-time execution of the entire file, meaning the entire file is equivalent to the main function. But I just want to run the specified function. In fact, you can run using the function name as a parameter to run, it seems a bit abstract, look at the code bar.

Firewalltest Script Content

#!/bin/sh

Parse_l7 () {
echo "Protocol"
echo "Maxrate"
echo "$*"
}

$*

OpenWrt Terminal input

./firewalltest parse_l7 AA bb cc

Terminal output

Protocol
Maxrate
AA BB cc

According to the results you can see that "firewalltest parse_l7 AA bb cc" is equivalent to executing the PARSE_L7 function in the Firewalltest file, with a parameter of AA BB cc.

Test methods for Shell custom functions