nohup

Additional Notes

nohup is a process-management command used to run a command immune to hangups after logout. It ensures a command keeps running after the user logs out or the terminal session ends.

Output that is not redirected goes to nohup.out in the current directory. For managing long-running sessions interactively, consider screen or tmux instead.

Syntax

nohup command [arguments ...]

Parameters

• options: Flags that change how nohup behaves.
• command: Command to keep running after hangup.

Common Options

nohup is usually used by placing it before another command. Output defaults to nohup.out if not redirected.

Examples

nohup ./backup.sh &
nohup python worker.py > worker.log 2>&1 &

Practical Notes

For interactive long-running sessions, screen or tmux is often easier to manage.