How to call a function when a sh file is called using terminal

Question

I have a code in a file named main.sh:

#!/bin/bash
function hello() {
  echo $1
}

I want to call it from command line like this:

main hello teddy

and it should output like hello teddy. Is that possible?. If yes, Please tell me. Thank you in advance

Does this answer your question? [Bash, call a function sourced from a script?](https://stackoverflow.com/questions/11330753/bash-call-a-function-sourced-from-a-script) — John Moon, Mar 24 '21 at 15:32

score 0 · Answer 1 · answered Mar 24 '21 at 15:33

It is possible depending on where you define the function. There are several bash startup files which are run on startup. For example, .bashrc:

When an interactive shell that is not a login shell is started, Bash reads and executes commands from ~/.bashrc, if that file exists.

So if you define your function in your .bashrc you will be able to run it just as if you had explicitly defined it using the shell.

1 Answers1