.. / nohup

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• Shell
• Command

Shell

This executable can spawn an interactive system shell.

• Comment

  This creates a nohup.out file in the current working directory.

  Unprivileged

  This function can be performed by any unprivileged user.

  nohup /bin/sh -c '/bin/sh </dev/tty >/dev/tty 2>/dev/tty'

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  nohup /bin/sh -c '/bin/sh </dev/tty >/dev/tty 2>/dev/tty'

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  Remarks

  This executable runs commands directly, e.g., via functions like exec, remember to omit the -p argument of every /bin/sh invocation for distributions where the default shell does not drop SUID privileges.

  nohup /bin/sh -p -c '/bin/sh -p </dev/tty >/dev/tty 2>/dev/tty'

Command

This executable can run non-interactive system commands.

• Comment

  The nohup.out file contains the standard output and error of the command.

  Unprivileged

  This function can be performed by any unprivileged user.

  nohup /path/to/command
  cat nohup.out

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  nohup /path/to/command
  cat nohup.out

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  nohup /path/to/command
  cat nohup.out

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