shell script function with parameters code example

Example 1: bash function arguments

#!/usr/bin/env sh

foo 1  # this will fail because foo has not been declared yet.

foo() {
    echo "Parameter #1 is $1"
}

foo 2 # this will work.

Example 2: introduce parameters to programs in unix

$ function_name ram
hello ram

Example 3: introduce parameters to programs in unix

function_name()
{
 echo “hello $1”
 return 1
}