Write a command or script that finds all files with the extension .log in the current directory containing the word error, and outputs only the names of these files.

You can use the grep command with the -l option, which outputs only the filenames where a match is found:

grep -l "error" *.log

If you need to search recursively in all subdirectories:

grep -rl --include="*.log" "error" .

Here:

• -r — recursive search
• -l — outputs only filenames
• --include="*.log" — restricts search to files with .log extension
• . — current directory