tldr - a better man page with example

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tldr disown
  disown

  Allow sub-processes to live beyond the shell that they are attached to.
  See also the `jobs` command.
  More information: https://www.gnu.org/software/bash/manual/bash.html#index-disown.

  - Disown the current job:
    disown

  - Disown a specific job:
    disown %job_number

  - Disown all jobs:
    disown -a

  - Keep job (do not disown it), but mark it so that no future SIGHUP is received on shell exit:
    disown -h %job_number

Reference: https://tldr.sh/