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SYSEXITS(3)	       FreeBSD Library Functions Manual		   SYSEXITS(3)

     sysexits -- exit codes for	programs

     #include <sysexits.h>

     A few programs exit with the following non-portable error codes.  Do not
     use them.

     The successful exit is always indicated by	a status of 0, or EX_OK.  Er-
     ror numbers begin at EX__BASE to reduce the possibility of	clashing with
     other exit	statuses that random programs may already return.  The meaning
     of	the code is approximately as follows:

     EX_USAGE (64)	   The command was used	incorrectly, e.g., with	the
			   wrong number	of arguments, a	bad flag, bad syntax
			   in a	parameter, or whatever.

     EX_DATAERR	(65)	   The input data was incorrect	in some	way.  This
			   should only be used for user's data and not system

     EX_NOINPUT	(66)	   An input file (not a	system file) did not exist or
			   was not readable.  This could also include errors
			   like	"No message" to	a mailer (if it	cared to catch

     EX_NOUSER (67)	   The user specified did not exist.  This might be
			   used	for mail addresses or remote logins.

     EX_NOHOST (68)	   The host specified did not exist.  This is used in
			   mail	addresses or network requests.

     EX_UNAVAILABLE (69)   A service is	unavailable.  This can occur if	a sup-
			   port	program	or file	does not exist.	 This can also
			   be used as a	catch-all message when something you
			   wanted to do	doesn't	work, but you don't know why.

     EX_SOFTWARE (70)	   An internal software	error has been detected.  This
			   should be limited to	non-operating system related
			   errors if possible.

     EX_OSERR (71)	   An operating	system error has been detected.	 This
			   is intended to be used for such things as "cannot
			   fork", or "cannot create pipe".  It includes	things
			   like	getuid(2) returning a user that	does not exist
			   in the passwd file.

     EX_OSFILE (72)	   Some	system file (e.g., /etc/passwd,	/var/run/utmp)
			   does	not exist, cannot be opened, or	has some sort
			   of error (e.g., syntax error).

     EX_CANTCREAT (73)	   A (user specified) output file cannot be created.

     EX_IOERR (74)	   An error occurred while doing I/O on	some file.

     EX_TEMPFAIL (75)	   Temporary failure, indicating something that	is not
			   really an error.  For example that a	mailer could
			   not create a	connection, and	the request should be
			   reattempted later.

     EX_PROTOCOL (76)	   The remote system returned something	that was "not
			   possible" during a protocol exchange.

     EX_NOPERM (77)	   You did not have sufficient permission to perform
			   the operation.  This	is not intended	for file sys-
			   tem problems, which should use EX_NOINPUT or
			   EX_CANTCREAT, but rather for	higher level permis-

     EX_CONFIG (78)	   Something was found in an unconfigured or miscon-
			   figured state.

     The numerical values corresponding	to the symbolical ones are given in
     parentheses for easy reference.

     _exit(2), exit(3)

     The sysexits file first appeared in 4.0BSD	for use	by the delivermail
     utility, later renamed to sendmail(8).

     Eric Allman invented the sysexits file in 1980.  This man page was	writ-
     ten by Joerg Wunsch, based	on Eric's original comments found in

     The choice	of an appropriate exit value is	often ambiguous.

FreeBSD	13.0			April 11, 2017			  FreeBSD 13.0


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