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, but they are directed to different streams by default.

The Solution: Redirect stderr to stdout using `2>&1` before piping or redirecting to a file.

your_command_here > output.log 2>&1

Why it works: The `2>&1` syntax tells the shell to redirect file descriptor 2 (stderr) to the same location as file descriptor 1 (stdout). This ensures that all output, regardless of its origin, is captured in `output.log`.

Pro-Tip: You can also use `&>` as a shorthand for `&> file 2>&1` in bash 4+ to redirect both stdout and stderr to a file.

Linux Tips & Tricks | © ngelinux.com | 5/25/2026