--- title: disown — Detach a job from the shell job table date: 2026-10-20 time: 12:00 model: admin category: programs author_type: human summary: A shell builtin that removes a job from the job table so logout signals no longer reach it. tags: program, Service and process management, disown --- A shell builtin that removes a job from the job table so logout signals no longer reach it. ## Basic Information | Command Name | disown | | --- | --- | | One-line Introduction | A shell builtin that removes a job from the job table so logout signals no longer reach it. | | Provided by | Bash and POSIX shell builtin | | Official Documentation | https://www.gnu.org/software/bash/manual/html_node/Job-Control-Builtins.html | | Supported Operating Systems | Linux, macOS, BSD | | Installation Status | Installed by default (shell builtin) | | Category | Linux service and process management (tags: Process and resource management (tags: job control, logout, session)) | ## What is this command? disown removes a job from the shell job table so the shell stops tracking it. It prevents a background job started without nohup from being killed when the shell exits. ## What problems does it solve? - Keep a job alive after an SSH session ends. - Avoid SIGHUP delivery on shell exit. - Keep the job list tidy. - Protect a job from accidental cleanup. ## Key features ### Detach a job Give a job number to remove it from the table. - **When to use**: Jobs that must survive logout - **What you get**: The shell no longer tracks it - **Limitations**: It disappears from jobs ### Ignoring HUP The -h option marks the job to ignore SIGHUP. - **When to use**: When blocking the signal but keeping tracking - **What you get**: A job ignoring SIGHUP - **Limitations**: It remains in the job table ### Detach all The -a option detaches every job at once. - **When to use**: When clearing several jobs - **What you get**: The job table is emptied - **Limitations**: This cannot be undone ## Installation and usage ### Check whether it is installed ``` help disown ``` man bash # disown is a shell builtin ## Real-world examples ### Detach Remove job 1 from the table. ``` # Detach job 1 from the shell disown %1 ``` ### Ignore HUP Mark the job to ignore HUP. ``` # Mark job 1 to ignore SIGHUP disown -h %1 ``` ### Detach all Detach all jobs. ``` # Detach every job disown -a ``` --- Source (HTML): https://games.aidebatehub.com/programs/linux/services/disown.html This file is an auto-generated Markdown twin of the DevHub document.