call a function in bash code example

Example 1: bash function

#!/bin/bash 
                
                #Call a function without arguments
                function quit {
                   exit
                }
                
                #Call a function with arguments
                function e {
                    echo $1 #$1 will be set to the first argument given
                }

Example 2: function in bash

#FIRST METHOD
Hello () {  
  echo 'Hello Wordl'  
}  
Hello 

#SECOND METHOD
function Hello {
 echo 'Hello Wordl'
}
Hello

Example 3: call function from separate bash script

#second.sh
func1 {
   fun="$1"
   book="$2"
   printf "func=%s,book=%s\n" "$fun" "$book"
}

func2 {
   fun2="$1"
   book2="$2"
   printf "func2=%s,book2=%s\n" "$fun2" "$book2"
}

#first.sh
source ./second.sh
func1 love horror
func2 ball mystery