02-21-2013
Quote:
Originally Posted by
RudiC
Why should it stop - while true will stay true and thus loop forever. Which it does. It will hog CPU like mad, eventually run your 18:30h job in between...
Use Jotne's proposal and you're there.
P.S.: That START: ... GOTO START is a DOSism, I think. I guess it's unavailable in any *nix shell.
Yes RudiC. It is hogging my CPU like anything. But I didn't quite get what Jotne said.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I am ftping the file from one unix box to another box. This script works fine. Only problem here is, it is asking the password when ftp the file. How can i stop that. I am providing the password inside the shell script. But it is not accepting this. I need to put this script in crontab.... (5 Replies)
Discussion started by: govindts
5 Replies
2. Shell Programming and Scripting
Hi
I have a script, which i ran in background, can someone please help in stopping this.
i gave this command:
ksh abc.ksh &
this script sends me a mail every 30 seconds. i have deleted the script but still i am getting the mails. can some one please help me stopping dese.
... (3 Replies)
Discussion started by: Prateek007
3 Replies
3. Shell Programming and Scripting
Hi, I have googled for quite some time and couldn't able to get what exactly I am looking for.. My query is "how to stop a shell script which is running inside a remote server, using a script"??? can any one give some suggestions to sort this out. (1 Reply)
Discussion started by: mannepalli
1 Replies
4. Shell Programming and Scripting
Hello members,
I have some doubts on how to write a script that can reports success / failure of a batch job ?
1. Run a batch job:
2. Wait and search for a particular string in the Log file:
tail -f log01*.txt | egrep -v "^SUCCESSFUL"
echo "continue with the other tasks"
... (1 Reply)
Discussion started by: novice82
1 Replies
5. Shell Programming and Scripting
I have this "process keepalive" script:
#!/bin/bash
PIDFILE=/tmp/php.pid
PHPSCRIPT=/home/www/mydomain.com/subdomains/www/parser.php
echo 'Checking php process from PID file'
if ; then
PID=`cat $PIDFILE`
if ps ax | grep -v grep | grep $PID > /dev/null
then
echo "php process still... (4 Replies)
Discussion started by: LukasB
4 Replies
6. Shell Programming and Scripting
Hi all!!
Im using ksh and my OS is Linux.
I want to run a script for ten minutes, starting from my current system time.
How to acheive this?
Any help appreciated.
Thanks in advance (5 Replies)
Discussion started by: Jayaraman
5 Replies
7. Shell Programming and Scripting
Hi,
I want to write a script which continuously checking status of a script running in background by nohup command. And if same script is not running then immediately start the script...please help..
i am using below command to run script
nohup system_traps.sh &
but in some... (9 Replies)
Discussion started by: ketanraut
9 Replies
8. Shell Programming and Scripting
Hi I have a shell script I would like to run it has to run twice a day every 5 seconds for an hour I can do this with cron but I was hoping there was an easier way. Is there a way to make a process sleep only at a certain time of day say between 1 and 2 pm? Or under certain conditions?
Any help... (8 Replies)
Discussion started by: Paul Walker
8 Replies
9. Emergency UNIX and Linux Support
Hi,
I need to set up a script that would write the results of the ping command from one AIX server to another file may be every minute. Like this I need to gather the data for a period of 24 hours.
Can someone please help me with this?
G (5 Replies)
Discussion started by: ggayathri
5 Replies
10. UNIX for Beginners Questions & Answers
Hi
I have written below log monitoring script to egrep multiple words and redirect the output to a text file and its working fine but I want to add some more below given functionality to it, which is very advance and im not very good in it, so please help if you can :)
I am egrepping all the... (1 Reply)
Discussion started by: scazed
1 Replies
less(3pm) Perl Programmers Reference Guide less(3pm)
NAME
less - perl pragma to request less of something
SYNOPSIS
use less 'CPU';
DESCRIPTION
This is a user-pragma. If you're very lucky some code you're using will know that you asked for less CPU usage or ram or fat or... we just
can't know. Consult your documentation on everything you're currently using.
For general suggestions, try requesting "CPU" or "memory".
use less 'memory';
use less 'CPU';
use less 'fat';
If you ask for nothing in particular, you'll be asking for "less 'please'".
use less 'please';
FOR MODULE AUTHORS
less has been in the core as a "joke" module for ages now and it hasn't had any real way to communicating any information to anything.
Thanks to Nicholas Clark we have user pragmas (see perlpragma) and now "less" can do something.
You can probably expect your users to be able to guess that they can request less CPU or memory or just "less" overall.
If the user didn't specify anything, it's interpreted as having used the "please" tag. It's up to you to make this useful.
# equivalent
use less;
use less 'please';
"BOOLEAN = less->of( FEATURE )"
The class method "less->of( NAME )" returns a boolean to tell you whether your user requested less of something.
if ( less->of( 'CPU' ) ) {
...
}
elsif ( less->of( 'memory' ) ) {
}
"FEATURES = less->of()"
If you don't ask for any feature, you get the list of features that the user requested you to be nice to. This has the nice side effect
that if you don't respect anything in particular then you can just ask for it and use it like a boolean.
if ( less->of ) {
...
}
else {
...
}
CAVEATS
This probably does nothing.
This works only on 5.10+
At least it's backwards compatible in not doing much.
perl v5.18.2 2013-11-04 less(3pm)