Cancel sudo prompts in a shell script

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I don't want 'sudo' to prompt me for password while my script is running. And i do not want to enter sudo password as well using sudo -S. Is there any way to skip sudo lines and run next line of script. Or is there any way to print 'sudo access required' whenever sudo is prompted and running the script further.

You can test if the current user is root, like:

if [ "$(id -u)" != "0" ]; then
    echo "root access required"
    exit -1

Cancel sudo prompts in a shell script, be run as root? sudo 's inbuilt credential caching mechanism will mean you should only need to answer a password prompt once, unless the shell script runs​  sudo in OS X shell script without password prompt?? I've written a shell script to alter a particular preference file on OS X (10.3.9), which works fine (tested by running the script from the terminal sat in front of the box).

If you don't want to prompt a sudo password, just add your current user to /etc/sudoers (edit this file as root).

Find there a block, starts from comment:

# Allow members of group sudo to execute any command

And add there kind of this line:


Exit sudo in the middle of a shell script, I run sudo directly from the script: Change sudo to gksu or gksudo if you prefer a graphical prompt. Gilles 'SO- stop being evil' #!/bin/bash [ "$UID" -eq 0 ] || exec sudo "$0" "$@" && echo -n "sudo bash what: " read WHAT sudo $WHAT. The rm and rmdir commands delete files and directories on Linux, macOS, and other Unix-like operating systems. They’re similar to the del and deltree commands in Windows and DOS. These commands are very powerful and have quite a few options.

For the record, a better approach would be to just copy the script and edit it to a non-root version.

That said, if you create a function to implement your sudo's that requires a flag be set you can activate them at runtime, but skip them by default.

$: cat tst
#! /bin/env bash

dosudo() {
   if (( DOSUDO ))
   then sudo "$@"
   else echo "Skipping: sudo $@"

echo before
dosudo ls -d /tmp
echo after

Running it in default mode:

$: tst
Skipping: sudo ls -d /tmp

Running it active (I CTRL-C break out of the prompt here) -

$ DOSUDO=1 tst
[sudo] password for weblogic:

Prompt for sudo password and programmatically elevate privilege in , Every time you issue a sudo command, Linux asks for your user password after a certain inactivity timeout, usually 5 minutes. This is the  From time to time, you may need to execute some privileged commands in a shell script. While using sudo, you may want to either enter your password only once for a long running script, or execute the script without giving a password at all. This article will tell you how to do it in the right way.

Disable Sudo Password Prompt or Extend Timeout in Linux , Disable password prompt. Running the following command (from a shell with interactive mode so you can enter  Use sudo with Python shell scripts Posted on September 29, 2014 September 29, 2014 by Jeremy in pexpect , python , shell-scripting , sudo Sometimes we need to call external tools in Python scripts.

Sudo commands, Run command: sudo visudo; Depending on what Linux distro you are using, and whether or not you have ever run visudo before, you may opr  I have tried putting following commands in a shell script sudo su - user2 -c "sudo cmd1" (this prompts me for a password though I have a sudo rule to not prompt for one.) sudo su - user2 (this gets me out of the shell and takes me to "user2@host]") none works for me. Any help on this would be greatly appreciated.

Jon's Site, The Unix commands sudo and su allow access to other commands as a different user. To use the sudo command, at the command prompt, enter: At Indiana University, for personal or departmental Linux or Unix systems  40 videos Play all Complete Shell Scripting Tutorials Automation with Scripting Bash Scripting Full Course 3 Hours - Duration: 3:08:04. linuxhint 80,502 views

  • Comment those lines?
  • current user is not root. I'm running the script as normal user.
  • I want to run my script as a normal user. I don't want to run this as root user.
  • If you can run your script without sudo, just run it and you'll should not have any problem. If your script contains commands, which must run with sudo (e.g. service some-service restart), do what i wrote above, and sudo commands will pass without password. When you run command from normal user with sudo - it means, that your user have root privileges, but you're not root.