Notes for 2025-04-30

Replacing Files in Ubuntu

To replace a file in Ubuntu (Linux), you can use the mv (move) or cp (copy) command, depending on whether you want to move or overwrite a file.

Replace (Overwrite) a File with Another

Using cp:

The cp command with the -f option forces overwriting the destination file.

cp -f source_file target_file

Example:

cp -f /home/user/new-config.conf /etc/myapp/config.conf

Using mv:

The mv command with the -f option moves and replaces the target file.

mv -f source_file target_file

Example:

mv -f ./updated-script.sh /usr/local/bin/myscript.sh

This will replace the old myscript.sh with the new one.

Important:

Use sudo if you're replacing system or root-owned files:

sudo cp -f myfile /etc/someconfig/file.conf

Written by A.M. Rinas