Quick Tip

Tame Your Terminal: Unified Logging with 2>&1

Challenge: When running commands or scripts, you often want to capture both standard output (stdout) and standard error (stderr) into a single log file. This is crucial for debugging and comprehensive record-keeping.

The Solution: Use the 2>&1 redirection operator.

your_command_here > output.log 2>&1

Why it works: > output.log redirects standard output (file descriptor 1) to the file ‘output.log’. 2>&1 then redirects standard error (file descriptor 2) to the same location as standard output (file descriptor 1), effectively merging both streams into the single log file.

Pro-Tip: For even more robust error handling in scripts, use set -o pipefail, which causes a pipeline to return the exit status of the last command that exited with a non-zero status, or zero if all commands in the pipeline exit successfully.

Linux Tips & Tricks | © ngelinux.com | 6/27/2026