The exit built-in causes the shell process to exit.
Syntax
-
exit [-f] [exit_status]
Description
The exit built-in causes the current shell (or subshell) process to exit.
If an interactive shell has a stopped job, the shell prints a
warning message and refuses to exit.
To force the shell to exit regardless, specify the -f (--force) option or
execute the built-in twice in a row.
If an EXIT trap has been set, the shell executes the trap before exiting.
Options
-
-f -
--force -
Suppress warnings that would prevent the shell from exiting.
Operands
- exit_status
-
A non-negative integer that will be the exit status of the exiting shell.
If this operand is omitted, the exit status of the shell will be that of the last command executed before the exit built-in (but, if the built-in is executed during a trap, the exit status will be that of the last command before the trap is entered).
If exit_status is 256 or larger, the actual exit status will be the remainder of exit_status divided by 256.
Exit status
Because the built-in causes the shell to exit, there is no exit status of the built-in.
As an exception, if the shell refused to exit, the exit status of the built-in is non-zero.
Notes
The exit built-in is a special built-in.
The POSIX standard defines no options for the exit built-in; the built-in accepts no options in the POSIXly-correct mode.
The POSIX standard provides that the exit_status operand should be between 0 and 255 (inclusive). Yash accepts integers larger than 255 as an extension.
If the built-in is executed during an EXIT trap, the shell just exits without executing the trap again. If exit_status was not specified, the exit status of the shell is what the exit status would be if the trap had not been set. See also Termination of the shell.