---
name: "setsid"
section: "1"
platform: "linux"
package: "util-linux"
version: "2.42.4-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/setsid"
---

# setsid(1)

run a program in a new session

## NAME

setsid - run a program in a new session

## SYNOPSIS

**setsid** \[options\] *program* \[*arguments*\]

## DESCRIPTION

**setsid** runs a program in a new session. The command calls [**fork**(2)](/fork/2.md) if already a process group leader. Otherwise, it executes a program in the current process. This default behavior is possible to override by the **--fork** option.

## OPTIONS

- **-c**, **--ctty**

  Set the controlling terminal to the current one.

- **-f**, **--fork**

  Always create a new process.

- **-w**, **--wait**

  Wait for the execution of the program to end, and return the exit status of this program as the exit status of **setsid**.

- **-h**, **--help**

  Display help text and exit.

- **-V**, **--version**

  Display version and exit.

## AUTHORS

*Rick Sladkey* \<jrs@world.std.com\>

## SEE ALSO

[**setsid**(2)](/setsid/2.md)

## REPORTING BUGS

For bug reports, use the *issue tracker* \<https://github.com/util-linux/util-linux/issues\>.

## AVAILABILITY

The **setsid** command is part of the util-linux package which can be downloaded from *Linux Kernel Archive* \<https://www.kernel.org/pub/linux/utils/util-linux/\>.