Calling bash function from a bash function which takes arguments like any other language?

Question

I am new to bash scripting and trying to find a way to call a bash function from another bash function that takes one or many arguments passed like we have in other languages ?

for example.

function b()
{
    echo "$1 World!"
}

function a()
{
    b("Hello!")
}

with call for function "a" would give output of Hello World! (I am not sure if this will work). Any help is appreciated.

Thank you

Answer 1

Just add the parameters after the function call, separated by white space (Just like the parameters of a main function in a C or Java binary).

The following script:

#!/bin/bash

function b()
{
    echo "$1 World!"
}

function a()
{
    b "Hello!"
}

a

will output Hello! World!.

Surround the parameter with double-quotes if needed.

example:

$ b x y
x World!
$ b "x y"
x y World!