Are you talking about writing a program to monitor a FIFO pipe so the program will sleep untill another program activates the pipe then the first program will wake up and do it's bit ?
Here's a small C section to do that
It is used from one terminal as:
Quote:
redhead@sindre{56} ~/Programming> ./a.out &
[1] 5035
redhead@sindre{57} ~/Programming> cat my_fifo_fil
You woke me poking my fifo my_fifo_fil
Program Woken at: Tue Nov 10 17:38:40 2009
[1] Done ./a.out
I'm very new to unix. I need help in writing a shell script that will automatically take output file from a particular folder from a server and if the file is generated send email notifications to certain group of ppl and if it is not generated send a mail wid error msg..
can any1 help me on... (2 Replies)
I'm very new to unix. I need help in writing a shell script that will automatically take output file from a particular folder from a server and if the file is generated send email notifications to certain group of ppl and if it is not generated send a mail wid error msg..
can any1 help me on... (4 Replies)
I want to gzip a file and append the creation date to the end of the file. How can I accomplish this task. Basically they are log files which need a creation date stamp appended to make sure they do not overwrite other log files.
-jack (3 Replies)
Hi,
I am quite new to Perl scripting and i need to create a .TXT file using perl, with fields (A,B,C,D,E), and this text file should be named with current file creation date "XYZ_CCYYMMDD.TXT" (i.e.XYZ_2011042514:33 PM).
Can anyone who has done this, please share their expertise on this... (5 Replies)
I would like to know
Is it possible to get a notification as pop-up in linux
when a folder with extension '.aqs' written
a popup should come
as " The folder has been written "
Thank you in advance (5 Replies)
I need to get notification via email when the line containing a pattern is changed in a file. Not during the time any changes to file occurs. Ie if we reset a user password say example, demouser the hash in the line containing the word demouser in the file /etc/group changes. So when this change... (1 Reply)
hi,
I want to the AIX to check if file exist everyday and send me notification email.
I added this to the root file in /var/spool/cron/crontabs
0 10 * * * /usr/sendS40No.sh > /dev/null 2>&1
I tried also
0 10 * * * /usr/sendS40No.sh
and in the sendS40No.sh i wrote this
if
then
echo... (6 Replies)
Can someone help me with a shell script that will send an email to a set of email ids when a user id is created or deleted on AIX system.
Also, if the script can let the admin know when a particular user id's password will expire. (2 Replies)
Can someone help me with a shell script that will send an email to a set of email ids when a user id is created or deleted on AIX system.
Also, if the script can let the admin know when a particular user id's password will expire. (4 Replies)
Hello Folks,
I have an requirement, where i need to get total count of the file based on creation date with there filename selected pattern.
Filename: MobileProtocol.20171228T154200.157115.udr
I want to get the count of files created on each day based on a pattern find.
find . -type... (7 Replies)
Discussion started by: sadique.manzar
7 Replies
LEARN ABOUT HPUX
mq_notify
mq_notify(2) System Calls Manual mq_notify(2)NAME
mq_notify - register/cancel a notification request with a message queue
SYNOPSIS DESCRIPTION
If the argument notification is not NULL, the system call registers the calling process to be notified of message arrival at an empty mes-
sage queue associated with the message queue descriptor mqdes. The notification specified by the notification argument will be sent to the
process when the message queue transitions from the empty state to the non-empty state.
If the type of notification specified in notification->sigev_notify is then the signal specified in notification->sigev_signo will be sent
to the process. If the flag is set for that signal number, then the value specified in notification->sigev_value will be the si_value com-
ponent of the siginfo_t structure passed to the signal catching function at the time of signal delivery.
At any time, only one process can be registered for notification with a message queue. If the calling process, or any other process has
already registered for notification with the specified message queue, subsequent attempts to register with that queue will fail.
If notification is NULL and the process is currently registered for notification with the specified message queue, the existing registra-
tion is canceled.
When the notification is sent to the registered process, its registration is removed. The message queue is then available for registra-
tion.
If there is some process blocked in waiting to receive a message from a message queue, the arrival of a message on the queue will satisfy
the even if the queue has a registered notification request. The resulting behavior is as if the message queue remains empty, and no noti-
fication is sent.
To use this function, link in the realtime library by specifying on the compiler or linker command line.
RETURN VALUE
returns the following values:
Successful completion.
Failure.
is set to indicate the error.
ERRORS
If fails, is set to one of the following values:
[EAGAIN] The system lacks sufficient signal queuing resources to honor the request.
[EBADF] The mqdes argument is not a valid message queue descriptor.
[EBUSY] A process is already registered for notification with the message queue.
[EINVAL] An attempt was made to cancel a non-existent notification request, or notification points to an invalid address.
[ENOSYS] is not supported by the implementation.
SEE ALSO mq_open(2), mq_send(2), sigaction(2). signal(2), signal(5).
STANDARDS CONFORMANCE mq_notify(2)