Quick Tip

Unified Logging: Redirecting `stderr` to `stdout`

Challenge: When running commands, especially in scripts or complex pipelines, error messages (stderr) and standard output (stdout) can get interleaved or lost, making it difficult to troubleshoot or consolidate logs.

The Solution: You can redirect standard error (file descriptor 2) to standard output (file descriptor 1) using the `2>&1` syntax.

your_command_here 2>&1 | tee output.log

Why it works: This tells the shell to send anything that would normally go to stderr to the same place as stdout. When piped to `tee`, both streams are then written to the specified file and also displayed on your terminal.

Pro-Tip: For simpler cases where you just want to discard errors, you can redirect stderr to `/dev/null`: `your_command_here 2>/dev/null`

Linux Tips & Tricks | © ngelinux.com | 4/29/2026