[SOLVED] Script adding alias in Linux

Issue

I have written this thing, but it is not working. I do not know why. The script does not create any alias. Here is my script:

#!/bin/bash
ans=t

while [ $ans == y ]; do
    echo "Give alias name"
    read name
    echo "Give aliast instruction"
    read instruction
    echo "alias $name='$instruction'" 
    read ans
done

That is probably simple question, I am totally new to Linux.

Solution

"==" isn't for test equal. It is a simple equal: "=" For check if it is different it is: !=

For define an alias you must use the command alias.

And you must execute the script with the command:

. ./script 

The first dot is important if not the script will be executed by a sub-shell and the alias definition will be for the sub-shell, and not the actual shell.

#!/bin/bash
ans=t

while [ $ans != y ]; do
    echo "Give alias name"
    read name
    echo "Give aliast instruction"
    read instruction
    alias "$name=$instruction" 
    read ans
done

Answered By - joseyluis

Answer Checked By - Marilyn (WPSolving Volunteer)