Sponsored Content
Top Forums Shell Programming and Scripting [Solved] Looking for script running before I run script again Post 302630309 by neutronscott on Wednesday 25th of April 2012 04:47:14 PM
Old 04-25-2012
Code:
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:
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Running script that sends an html formatted email fails when its run as cronjob

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)
Discussion started by: Nightowl
15 Replies

2. Shell Programming and Scripting

Script not running properly when run from Crontab

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)
Discussion started by: simoncjones
2 Replies

3. Shell Programming and Scripting

[Solved] Help with running ps -e | less on nano script editor

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)
Discussion started by: SANA4SPA
2 Replies

4. Shell Programming and Scripting

Run perl command in script[solved]

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)
Discussion started by: Lham
0 Replies

5. Shell Programming and Scripting

run shell script under nohup directly [solved]

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)
Discussion started by: johninweb
0 Replies

6. UNIX for Dummies Questions & Answers

[Solved] How to Check if a script is running?

Hi All, I am new to Unix... Can you please let me know how we can check if a script is running or not on Solaris box? (4 Replies)
Discussion started by: Rahul466
4 Replies

7. Shell Programming and Scripting

[Solved] The SCRIPT command - Can we see the log file of a running session?

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)
Discussion started by: paolfili
3 Replies

8. Shell Programming and Scripting

Script will keep checking running status of another script and also restart called script at night

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)
Discussion started by: ketanraut
1 Replies

9. Shell Programming and Scripting

[Solved] Running a R script with in a shell script

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
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)
All times are GMT -4. The time now is 07:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy