August 21, 2010

Use Of "sudo cd" Command

There are certain privileged directories on the Linux system, that a normal user can't access. You need to know the root password or at least be a sudoer to access those directories. Some people try sudo cd to cd into such directories, but end up with an error. I am describing a few here along with the explanation.

1. sudo cd does not work.

varsha@varsha-laptop:~$ sudo cd /etc

[sudo] password for varsha:
sudo: cd: command not found

Explanation: cd is a shell command, and not a program. So, when you try sudo cd, there is no program that can be launched, and so you get the error sudo: cd: command not found.

Also, there is a list of commands that can be run by certain users and not ALL commands can be run. This is maintained through a sudoers file. See:

varsha@varsha-laptop:~$ man sudoers

2. Becoming root first, and then the cd command works.

varsha@varsha-laptop:~$ su
root@varsha-laptop:/home/varsha# cd /directory-path

Explanation: Anyone can use sudo to enter a directory and manipulate files, so this calls for the use of su instead of sudo.

Thanks to Sharad Birmiwal for some of the information. Please refer to for the discussion.

No comments:

Post a Comment