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WAIT(1)                      BSD Reference Manual                      WAIT(1)

N\bNA\bAM\bME\bE
     w\bwa\bai\bit\bt - await process completion

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     w\bwa\bai\bit\bt [_\bp_\bi_\bd]

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
     If invoked with no arguments, the w\bwa\bai\bit\bt utility waits until all existing
     child processes in the background have terminated.

     Available operands:

     _\bp_\bi_\bd     If a _\bp_\bi_\bd operand is specified, and it is the process ID of a
             background child process that still exists, the w\bwa\bai\bit\bt utility
             waits until that process has completed and consumes its status
             information, without consuming the status information of any oth-
             er process.

             If a pid operand is specified that is not the process ID of a
             child background process that still exists, w\bwa\bai\bit\bt exits without
             waiting for any processes to complete.

     The w\bwa\bai\bit\bt utility exits with one of the following values:

     0       The w\bwa\bai\bit\bt utility was invoked with no operands and all of the ex-
             isting background child processes have terminated, or the process
             specified by the pid operand exited normally with 0 as its exit
             status.

     >0      The specified process did not exist and its exit status informa-
             tion was not available, or the specified process existed or its
             exit status information was available, and it terminated with a
             non-zero exit status.

     If the specified process terminated abnormally due to the receipt of a
     signal, the exit status information of w\bwa\bai\bit\bt contains that termination
     status as well.

S\bST\bTA\bAN\bND\bDA\bAR\bRD\bDS\bS
     The w\bwa\bai\bit\bt command is expected to be IEEE Std1003.2 (``POSIX'') compatible.

4.4BSD                           June 5, 1993                                1
Commit	Line	Data
8204f1ab C	1	WAIT(1) BSD Reference Manual WAIT(1)
	2
	3	N\bNA\bAM\bME\bE
	4	w\bwa\bai\bit\bt - await process completion
	5
	6	S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
	7	w\bwa\bai\bit\bt [_\bp_\bi_\bd]
	8
	9	D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
	10	If invoked with no arguments, the w\bwa\bai\bit\bt utility waits until all existing
	11	child processes in the background have terminated.
	12
	13	Available operands:
	14
	15	_\bp_\bi_\bd If a _\bp_\bi_\bd operand is specified, and it is the process ID of a
	16	background child process that still exists, the w\bwa\bai\bit\bt utility
	17	waits until that process has completed and consumes its status
	18	information, without consuming the status information of any oth-
	19	er process.
	20
	21	If a pid operand is specified that is not the process ID of a
	22	child background process that still exists, w\bwa\bai\bit\bt exits without
	23	waiting for any processes to complete.
	24
	25	The w\bwa\bai\bit\bt utility exits with one of the following values:
	26
	27	0 The w\bwa\bai\bit\bt utility was invoked with no operands and all of the ex-
	28	isting background child processes have terminated, or the process
	29	specified by the pid operand exited normally with 0 as its exit
	30	status.
	31
	32	>0 The specified process did not exist and its exit status informa-
	33	tion was not available, or the specified process existed or its
	34	exit status information was available, and it terminated with a
	35	non-zero exit status.
	36
	37	If the specified process terminated abnormally due to the receipt of a
	38	signal, the exit status information of w\bwa\bai\bit\bt contains that termination
	39	status as well.
	40
	41	S\bST\bTA\bAN\bND\bDA\bAR\bRD\bDS\bS
	42	The w\bwa\bai\bit\bt command is expected to be IEEE Std1003.2 (``POSIX'') compatible.
	43
	44	4.4BSD June 5, 1993 1