Command: Setedit

sed 'expression' file.txt In this case, Alex wants to replace old_password with new_password in the config.txt file. The sed command to achieve this is:

The basic syntax of sed is:

Meet Alex, a system administrator who needs to modify a large number of configuration files on a Linux server. The files contain a specific setting that needs to be updated, but there are hundreds of files to change. Manually editing each file would be a tedious and time-consuming task. That's when Alex discovers the power of the sed command. The Problem Alex has a file called config.txt with the following contents: Setedit Command