mispipe(1) [debian man page]

mispipe(1)																mispipe(1)

NAME

       mispipe - pipe two commands, returning the exit status of the first

SYNOPSIS

       mispipe ["command1"] ["command2"]

DESCRIPTION

       mispipe pipes two commands together like the shell does, but unlike piping in the shell, which returns the exit status of the last command;
       when using mispipe, the exit status of the first command is returned.

       Note that some shells, notably bash, do offer a pipefail option, however, that option does not behave the same since it makes a failure	of
       any command in the pipeline be returned, not just the exit status of the first.

EXIT STATUS

       The exit status of the first command. If the process terminated abnormally (due to a signal), 128 will be added to its exit status.

AUTHOR

       Nathanael Nerode

								    2006-09-07								mispipe(1)

TIMEOUT(1)						    BSD General Commands Manual 						TIMEOUT(1)

NAME

     timeout -- run a command with a time limit

SYNOPSIS

     timeout [--signal sig | -s sig] [--preserve-status] [--kill-after time | -k time] [--foreground] <duration> <command> <args ...>

DESCRIPTION

     timeout starts the command with its args. If command is still running after duration, it is killed.  By default, SIGTERM. is sent.

     --preserve-status		 Always exits with the same status as command even if it times out.

     --foreground		 Do not propagate timeout to the command children.

     -s sig, --signal sig	 Specify the signal to send on timeout.  By default, SIGTERM.  is sent.

     -k time, --kill-after time  Send a second kill signal if command is still running after time after the first signal was sent.

DURATION FORMAT

     duration and time can be integer or decimal numbers.  Values without unit symbols are interpreted as seconds.

     Supported unit symbols are:
     s	     seconds
     m	     minutes
     h	     hours
     d	     days

EXIT STATUS

     If the timeout was not reached, the exit status of command is returned.

     If the timeout was reached and --preserve-status is set, the exit status of command is returned.  If --preserve-status is not set, an exit
     status of 124 is returned.

     If command exits after receiving a signal, the exit status returned is the signal number plus 128.

     If command is an invalid command, the exit status returned is 126.

     If command is a non existing command, the exit status returned is 127.

     If an invalid parameter is passed to -s or -k, the exit status return is 125.

SEE ALSO

     kill(1), signal(3)

BSD
								   Oct 28, 2014 							       BSD