pidfile=/var/tmp/stats.pid
# exit if another is running
[ -e "$pidfile" ] && exit
# create pid file
echo $$ >"$pidfile"
# delete pid file on exit (may have to do this definitely depending on shell)
trap "rm $pidfile" EXIT
These 2 Users Gave Thanks to neutronscott For This Post:
Hi
Im very new at working with unix and this problem I simply can not understand. I know there are a lot of threads about problems with shell scripts behaving differently when run from a terminal and from a cronjob. I have tried everything(almost) but I still havent cracked this problem.
Im... (15 Replies)
Hi
I am a novice Linux/Perl user and am struggling to overcome what I am sure is a simple problem.
I am using a perl program to create a shell script daily containing between 10 and 30 "at -f" commands for the same day. Then I change the file attributes to allow the file to be executed. When... (2 Replies)
p { margin-bottom: 0.08in; } This is just a portion of a script I'm writing on Linux nano script editor. When I run the script I get stuck on the ps -e | less command portion of the script:wall:. It displays all the process running but it does not allow me to move to the next line on the script.... (2 Replies)
Hi all,
When I put the Perl command in a script, I got error.
system("perl -pi -e 's@words@words@g' myFile");
The error is:
Unrecognized character \x8A; marked by <-- HERE after دت مد�<-- HERE near column 15 at -e line 1.
Thanks in advance.
---------- Post updated at 06:30 AM... (0 Replies)
Hi,
i am not able to run the loop in nohup directly.
nohup 'for i in $(seq 10); do echo $i;./mscript.sh $i; done'
can some one help me how to run this directly in nohup?
---------- Post updated 03-15-12 at 12:20 AM ---------- Previous update was 03-14-12 at 11:59 PM ----------
From... (0 Replies)
Hello.
This is my situation.
script .anything
ls -l .
---How can I see the content of .anything using (i.e) cat .anything?
If not possible can someone suggest a sequence to simulate a console-recorder
to "observ" from a RUNNING script session?
Thanks
Paolo
Please use code tags... (3 Replies)
I am using blow script :--
#!/bin/bash
FIND=$(ps -elf | grep "snmp_trap.sh" | grep -v grep) #check snmp_trap.sh is running or not
if
then
# echo "process found"
exit 0;
else
echo "process not found"
exec /home/Ketan_r /snmp_trap.sh 2>&1 & disown -h ... (1 Reply)
Hi,
I do have an R script named KO.R. Basically reads thousands of files, whose name has a pattern that differs at a portion of the file name, List.txt.
Row_file1_mile.txt
Row_file2_mile.txt
Row_file3_mile.txt
...
...
Row_file1000_mile.txt
Below is a portion of my Rscript that reads... (4 Replies)
Discussion started by: Kanja
4 Replies
LEARN ABOUT DEBIAN
pidfilehack
pidfilehack(8) System Manager's Manual pidfilehack(8)NAME
pidfilehack - work around daemons that always fork
SYNOPSIS
pidfilehack servicename pidfile command [parameters]
DESCRIPTION
pidfilehack is used to work around daemons that insist on forking into the background, but that do write a correct pid file.
pidfilehack forks the actual service, then waits for the pidfile to be written. Once it can read the pid from the pidfile it will tell
minit the real pid and quit.
USAGE
usually pidfilehack is symlinked as run command of a service.
servicename
the name of the service pidfilehack is installed for.
pidfile
the filename to read the pid from
command
the real command to start
parameters
additional parameters for the command
A typical use of this command will look like this:
/etc/minit/apache
/etc/minit/apache/params
apache
/var/run/apache.pid
apachectl
start
/etc/minit/apache/run
-> /sbin/pidfilehack
AUTHOR
minit was written by Felix von Leitner and can be downloaded from his page at http://www.fefe.de/minit/
This manpage was written by Erich Schubert <erich@debian.org> for the Debian GNU/Linux operating system.
SEE ALSO msvc(8), pidfilehack(8)pidfilehack(8)