|
|
Sponsored Content
Top Forums
UNIX for Advanced & Expert Users
Multiple processes write to log file at the same time
Post 302456951 by casttree on Monday 27th of September 2010 02:44:19 AM
09-27-2010
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi all,
I joined this forum today and this is my first question. I thank you all for viewing it. I will try to be brief.
The OS: HP-UX B.11.11 U 9000/800
There are lot of cron scheduled perl scripts running on this server, which do different things at different time. Some of them process... (10 Replies)
Discussion started by: bluesky099
10 Replies
2. Shell Programming and Scripting
Hi All,
I have encountered a problem,please help me.
I have a script in which multiple processes are writing on to the same file .
How should I stop this , I mean lock mechanism can be implemented or we can write the at different files and then concatenate the files.
What would be a better... (1 Reply)
Discussion started by: Sayantan
1 Replies
3. UNIX for Advanced & Expert Users
Can someone help me with writing a unix script for following requirement
1) I have a log file in which we have start time and end time (format: hh:mm:ss)
Example: starting script on Thu Jun 5 20:50:52
Thu Jun 5 21:55:33 - Script Completed
2) I want to extract start time and end time of... (0 Replies)
Discussion started by: santosham
0 Replies
4. Shell Programming and Scripting
Can someone help me with writing a unix script for following requirement
1) I have a log file in which we have start time and end time (format: hh:mm:ss)
Example: starting script on Thu Jun 5 20:50:52
Thu Jun 5 21:55:33 - Script Completed
2) I want to extract start time and end time of... (0 Replies)
Discussion started by: santosham
0 Replies
5. UNIX for Dummies Questions & Answers
Can someone help me with writing a unix script for following requirement
1) I have a log file in which we have start time and end time (format: hh:mm:ss)
Example: starting script on Thu Jun 5 20:50:52
---------
Thu Jun 5 21:55:33 - Script Completed
2) I want to extract... (4 Replies)
Discussion started by: santosham
4 Replies
6. Programming
Hi,
Can anyone give me any idea when multiple processes access a file (like opening it, modifying it etc.) how can the synchronization can be done if they can access the same file at any time? How can this scenario is different from when multiple threads access a same file, modifying it etc- in... (7 Replies)
Discussion started by: sanzee
7 Replies
7. Shell Programming and Scripting
If we have 3 process to write to same log file at the same time like below. will it cause the data outdated because the multiple process writing same time? It this a safe way to keep the log for multiple process?
p1 >> test.log &;
p2 >> test.log &;
p3 >> test.log &
Thanks, (5 Replies)
Discussion started by: casttree
5 Replies
8. Shell Programming and Scripting
Hi there,
I would write a bash script to format then create a range of folder (folder name is number) to a usb stick.
for numbers in $(seq -w 001 999)
do
pause "Press any key to start"
mkfs.vfat -F32 /dev/sdc1
mount /dev/sdc1 /media/usb
mkdir /media/$numbers
umount /dev/sdc1... (8 Replies)
Discussion started by: wayneliao38
8 Replies
9. Shell Programming and Scripting
so i've been using this a lot in a lot of my scripts:
( columnA & columnAPID=$! & columnB & columnBPID=$! & columnC & columnCPID=$! &) &
wait ${columnAPID}
wait ${columnBPID}
wait ${columnCPID}
It seems to work as ive seen it dramatically reduce run time of my scripts.
however, i'm... (5 Replies)
Discussion started by: SkySmart
5 Replies
10. UNIX for Beginners Questions & Answers
Hello all,
How can I find out the start and end of the writing file in the directory or recording time for writing file?
I have a directory where small ~ 1*MB temporary files are written.
After the end of the record, they are retrieved and erased.
I can only find out that the files are... (4 Replies)
Discussion started by: mrAibo
4 Replies
LEARN ABOUT DEBIAN
sendpage::keeslog
Sendpage::KeesLog(3pm) User Contributed Perl Documentation Sendpage::KeesLog(3pm) NAME
Sendpage::KeesLog - implements a logging subsystem SYNOPSIS
$log=Sendpage::KeesLog->new(); $log->on(); $log->do('crit',"Something bad happened"); $log->reconfig($config); $log->do('debug',"I'm doing things"); $log->off(); $log->do('info',"Look at me, I'm writing to stderr now"); DESCRIPTION
This module is used in sendpage(1). BUGS
I need to write more docs for it. AUTHOR
Kees Cook <kees@outflux.net> SEE ALSO
perl(1), sendpage(1), Sendpage::KeesConf(3), Sendpage::Modem(3), Sendpage::PagingCentral(3), Sendpage::PageQueue(3), Sendpage::Page(3), Sendpage::Recipient(3), Sendpage::Queue(3) COPYRIGHT
Copyright 2000 Kees Cook. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.0 2008-01-03 Sendpage::KeesLog(3pm)