"Shell returned" message on Linux Post: 302385437

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Top Forums UNIX for Dummies Questions & Answers "Shell returned" message on Linux Post 302385437 by thegeek on Friday 8th of January 2010 05:12:07 AM

01-08-2010

Banned

No it is not an error.

You have to 'return 0' as the last statement of your program. You have missed to do, so by default the last statements return value will be returned to the shell which is actually 2 here.

That is returned by print to the program ( print returns the number of characters printed. ).

Got IT ?

Explicitly specify 0, then you will get that ZERO as returned.

thegeek

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mq_unlink

MQ_UNLINK(3)						     Linux Programmer's Manual						      MQ_UNLINK(3)

NAME

       mq_unlink - remove a message queue

SYNOPSIS

       #include <mqueue.h>

       int mq_unlink(const char *name);

       Link with -lrt.

DESCRIPTION

       mq_unlink()  removes  the specified message queue name.	The message queue name is removed immediately.	The queue itself is destroyed once
       any other processes that have the queue open close their descriptors referring to the queue.

RETURN VALUE

       On success mq_unlink() returns 0; on error, -1 is returned, with errno set to indicate the error.

ERRORS

       EACCES The caller does not have permission to unlink this message queue.

       ENAMETOOLONG
	      name was too long.

       ENOENT There is no message queue with the given name.

CONFORMING TO

       POSIX.1-2001.

SEE ALSO

       mq_close(3), mq_getattr(3), mq_notify(3), mq_open(3), mq_receive(3), mq_send(3), mq_overview(7)

COLOPHON

       This page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2010-08-29							      MQ_UNLINK(3)