09-02-2014
Quote:
Originally Posted by
RavinderSingh13
Hello Linuxuser_
We can use sleep command for put a wait to execute the next process, but it is better you can check the previous command's satus like it is completed or not by a condition as sleep will wait only for mentioned timings by the user. kindly try it and let us know if you face any issues. Also refer man sleep and man test for same too.
Thanks,
R. Singh
Dear Ravinder,
Thanks for the reply. I will check it out. One quick question based on your reply.
will sleep break from the wait after it satisfies the condition?
I mean, lets say time for generating one new file is 5 hrs and I have given sleep time as 10hrs.will it quit from the loop after finding the required file and restart with sleep time 10 hrs?
Thanks & Regards,
linuxUser_
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
ok, so i want to figure out what type of UNIX i have and in this book im reading about it, it says that i can figure out what type i have by typing the command uname in the prompt. So i did this and it came up saying Darwin?? is that part of System V UNIX or BSD or do i have LINUX? if anyone can... (2 Replies)
Discussion started by: hiei
2 Replies
2. UNIX for Dummies Questions & Answers
I recently purchased a book titled Hacking: The Art of Exploitation. When I got it home I read the preface and found out that i shouldnt have bought it. It says the code examples in this book were done on an x86 based computer (I have a mac). Is there anything I can do to make my mac run similar to... (2 Replies)
Discussion started by: Cyberaxe
2 Replies
3. Shell Programming and Scripting
:cool:
I need to execute a shell script to do the following:
cat a file
run two back ground processes using the first two values from the file
wait till those background processes finish
run two more background processes using the next two values from the file
wait till those background... (1 Reply)
Discussion started by: halo98
1 Replies
4. UNIX for Dummies Questions & Answers
I am one of the newbies. I want to load linux on my notebook, however, i am not sure which linux is the most recommend for the newbies.
Could you please advise?
Thanks you very much for any advise you may give me.
Best Regards,
SANLEN (2 Replies)
Discussion started by: sanlen
2 Replies
5. Shell Programming and Scripting
Did not use 'wait' yet.
How I understand by now the wait works only for child processes, started background.
Is there any other way to watch completion of any, not related process (at least, a process, owned by the same user?)
I need to start a background process, witch will be waiting... (2 Replies)
Discussion started by: alex_5161
2 Replies
6. Infrastructure Monitoring
Hello All,
My problem is:
I want to replace a line from a file with sed. The first word in that line is always the same in every server. The second line is server model, which of course will vary from platform to platform and I need to leave that word as it is. After the second word, I need to... (3 Replies)
Discussion started by: solaix14
3 Replies
7. Programming
I am looking to do a count on a database table where some of the elements count double. Say the data is as follows:
id value
1 X
2 Y
3 X
4 X
5 Y
A regular count (SELECT value, COUNT(*) FROM data GROUP BY value) would yield:
X 3
Y 2
However, Y happens to count double so the answer should... (2 Replies)
Discussion started by: figaro
2 Replies
8. Shell Programming and Scripting
I have a txt file with several columns and i want to peform an operation on two columns and output it to a new txt file .
file.txt
900.00000 1 1 1
500.00000
500.00000
100000.000
4
4
1.45257346E-07 899.10834 ... (4 Replies)
Discussion started by: shashi792
4 Replies
9. Cybersecurity
Connecting to the Internet with OpenVPN, the connection fails. Rerunning openvpn works second time round but the install is hacked at that point (e.g., a rogue 'java-security' update tries to install itself on 'yum update', yum however spots this and rejects the download, other basic things start... (3 Replies)
Discussion started by: GSO
3 Replies
10. Shell Programming and Scripting
Hi,
I am facing a strange issue,
when i call a script from my while loop in background it doesnt go in background, despite the wait i put below the whil loop it goes forward even before the process put in background is completed.
cat abc.txt | while read -u4 line
do
#if line contains #... (2 Replies)
Discussion started by: mihirvora16
2 Replies
LEARN ABOUT OPENSOLARIS
sleep
sleep(3UCB) SunOS/BSD Compatibility Library Functions sleep(3UCB)
NAME
sleep - suspend execution for interval
SYNOPSIS
/usr/ucb/cc [ flag ... ] file ...
int sleep(seconds)
unsigned seconds;
DESCRIPTION
sleep() suspends the current process from execution for the number of seconds specified by the argument. The actual suspension time may be
up to 1 second less than that requested, because scheduled wakeups occur at fixed 1-second intervals, and may be an arbitrary amount longer
because of other activity in the system.
sleep() is implemented by setting an interval timer and pausing until it expires. The previous state of this timer is saved and restored.
If the sleep time exceeds the time to the expiration of the previous value of the timer, the process sleeps only until the timer would have
expired, and the signal which occurs with the expiration of the timer is sent one second later.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
cc(1B), alarm(2), getitimer(2), longjmp(3C), siglongjmp(3C), sleep(3C), usleep(3C), attributes(5)
NOTES
Use of these interfaces should be restricted to only applications written on BSD platforms. Use of these interfaces with any of the system
libraries or in multi-thread applications is unsupported.
SIGALRM should not be blocked or ignored during a call to sleep(). Only a prior call to alarm(2) should generate SIGALRM for the calling
process during a call to sleep(). A signal-catching function should not interrupt a call to sleep() to call siglongjmp(3C) or longjmp(3C)
to restore an environment saved prior to the sleep() call.
WARNINGS
sleep() is slightly incompatible with alarm(2). Programs that do not execute for at least one second of clock time between successive calls
to sleep() indefinitely delay the alarm signal. Use sleep(3C). Each sleep(3C) call postpones the alarm signal that would have been sent
during the requested sleep period to occur one second later.
SunOS 5.11 30 Oct 2007 sleep(3UCB)