1. Shell Programming and Scripting

Hi, I have written below check lockfile script but need some tweaking on it. If there is a lockfile from present, I need the script to retry every 10 seconds to see if the lockfile is still there. After 120 seconds it should send an email. In my current version, if the script encounters... (6 Replies)

2. Shell Programming and Scripting

Just tried out the following code from "Using lockfiles in shell scripts": #!/bin/bash if ; then echo "File exists" else echo "File does not exists. Create file now." echo 1 > number.txt fi lockfile script.lock a=$(/usr/bin/tail -n 1 number.txt) if ; then... (1 Reply)

3. UNIX for Advanced & Expert Users

Hi all, I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...). I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message. Is there any way to simply get a return code... (3 Replies)

4. Shell Programming and Scripting

Hi, I am new to this forum, could any one please help me to understand the LOCKFILE command with an example and what exactly it is used for and how it is used. Thanks Reshu289 (4 Replies)

5. Shell Programming and Scripting

Hello, I have been working on using "flock"/file lock to prevent two instances of a bash script from being executed. Below is a simplified version of what I have to illustrate the flock part. It works as it is set up there below however the piece I am trying to figure out is how to get it to... (2 Replies)

6. Shell Programming and Scripting

I'm changing my mindset from a few big processes moving data from a few sources under an external, dependency-based scheduler to multiple processes moving data from many sources run by each client cron and possibly interfering with each other. It has the benefits of more granular code but I'm... (11 Replies)

7. Shell Programming and Scripting

Hi i have a script that check pings and i use flock to so the script wont run multipul times : its not the whole script but this is the idea : ( flock -x -w 3 200 || exit 1 /usr/sbin/fping -c$count -i$interval -a $hosts > $FILE1 2>&1 ) 200>/var/lock/.myscript.exclusivelock now i... (4 Replies)