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I have a script that checks if the script has been ran with sudo.
If the script is not ran as sudo, the current script is being executed with exec sudo bash.
You are asked for a password, you type...

https://i.imgflip.com/2mn6nl.jpg


This is a script that I, this unix forum and stackoverflow come up with. I would like to get some feedback about it and improve it little bit if possible for...

Bash programming is a true headache for beginners. May you suggest any reference book that has this kind of explanations if there is any? Conventions, best practices?

Added curly braces for better readability, your suggestions were very good.



#!/bin/bash

# If we can't run sudo without a password, complain and exit
if ! (sudo -n true 2> /dev/null)
then...

Yep, that's infinite loop, thanks for pointing that out. That might be the case.


The final version looks like this(only added comments that explains bahaviour):
(Any suggestions to make it...

The Shell Version

vaidas@SATELLITE-L855:~/Desktop$ $SHELL --version
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+:...

I've found this script part on the stackoverflow:
if [ $EUID != 0 ]; then
sudo bash "$0" "$@";
exit "$?";
fi


I realized that sudo bash "$0" "$@"; is the only needed for me.


But...