Bash Script Sudo Check

Are you a Linux user who often forgets the commands they executed with sudo privileges? It can be frustrating trying to remember every command you ever executed, especially if you need to audit your system or troubleshoot an issue. Fortunately, Make Tech Easier has provided a solution: checking the sudo history using grep.

The process is simple and only requires a few commands in the terminal. First, you need to access the sudo log file using the following command:

sudo vim /var/log/auth.log

Note that you can replace "vim" with your preferred text editor. Once you are in the log file, press the "/" key and enter "sudo:" to search for all instances of sudo commands. You can then use the arrow keys to navigate through the log and find the command you are looking for. However, this method can be time-consuming if you have a lot of logs to sift through.

That's where grep comes in. Grep is a command-line utility that allows you to search for specific patterns in files. By using grep, you can quickly find the commands you executed with sudo privileges. Here's how:

sudo grep "sudo" /var/log/auth.log

This command will display all instances of the word "sudo" in the auth.log file. This includes all sudo commands executed by all users. To filter the results to only show your sudo commands, you can add your username to the search term, like this:

sudo grep "username.*sudo" /var/log/auth.log

This command will display only the sudo commands executed by the specified user. You can replace "username" with your actual username. The dot between "username" and "sudo" is a wildcard character that allows for any number of characters to be present between username and sudo.

By following these simple steps, you can quickly and easily check your sudo history in Linux using grep. This will save you time and energy in the long run, and help you keep track of your system's commands for better management and security.

Bash script sudo check

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