Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Bash shell script to check if script itself is running
Top Forums Shell Programming and Scripting Bash shell script to check if script itself is running Post 302726579 by hedkandi on Sunday 4th of November 2012 11:26:32 PM
Old 11-05-2012
@bipin

the grep command totally didn't work, i am still getting empty result when i grep
Code:
[root@hedkandi bin]# nohup /usr/local/bin/test &
[1] 14194
[root@hedkandi bin]# nohup: ignoring input and appending output to `nohup.out'

[root@hedkandi ~]# ps -eaf | grep /usr/local/bin/process | grep -v grep
[root@hedkandi ~]#

if i use flock i can see messages in my /var/log but how do i ensure that it only gets written into if a. the script is running b. the script is not running c. the process is running d. the process is not running
Code:
#!/bin/bash
SERVICE="httpd"
CHECK_SCRIPT="/usr/local/bin/process"

if flock -n /var/run/your.lockfile -c /usr/local/bin/process >/dev/null
    then
logger -s "$CHECK_SCRIPT is running. Do nothing"
    else
logger -s "$CHECK_SCRIPT is not running. Please restart script"
    fi

if pgrep -l $SERVICE | grep $SERVICE  >/dev/null
    then
logger -s "$SERVICE process is running. Do nothing"
    else
logger -s "$SERVICE process is not running. Please restart service"
    fi

now, this script only detects the script is running and if the process is running/not running...a little help please to make it reliase the script is not running
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

how to check if a process is running in a server from shell script.

I want to write a unix shell script that will check if a process (say debu) is running in the server or not. If no , then send a mail to the corresponding person to start the process??? (2 Replies)
Discussion started by: debu
2 Replies

2. Shell Programming and Scripting

script to check if another script is running and if so, then sleep for sometime and check again

Hi, I am a unix newbie. I need to write a script to check wheteher another script is still running. If it is, then sleep for 30m and then check again if the script is running. If the script has stopped running then, I need to come out of the loop. I am using RHEL 5.2 (2 Replies)
Discussion started by: mathews
2 Replies

3. Shell Programming and Scripting

Running matlab script from within bash script

Hi guys, I'm new to scripting and I'm wondering if I can run a matlab script from within a bash script. Basically, at the minute I have a bash script which creates a file "bottfile.xyz" I then import "bottfile.xyz" into matlab using importdata('bottfile.xyz'). Then I just run the matlab... (0 Replies)
Discussion started by: jhunter87
0 Replies

4. UNIX for Dummies Questions & Answers

Help Running a Check in Bash Script

Hey guys, so I wrote a small script that pretty much just takes in two numbers and counts from the first to the second, e.g. unknown-hacker|544> count.sh 1 3 1 2 3 My problem is I want to make it so that if you input invalid parameters, such as non-numerical characters, more than 2... (2 Replies)
Discussion started by: Duo11
2 Replies

5. Shell Programming and Scripting

bash script to check if a program is running

I'm a bit new to bash programming and I was assigned the job of writing a script that will check to see if a program server is running and to restart the program if it is not up. The script is supposed to check the program every hour (which I have looked up and I believe I know how to do) and send... (3 Replies)
Discussion started by: mcknz
3 Replies

6. Shell Programming and Scripting

Shell Script for continuously checking status of a another script running in background, and immedia

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

7. Shell Programming and Scripting

Help with Check Syntax of Shell Script without Running

Hi Everyone, Is there any way ( generic) to check syntax of Shell Scripts without running it?? (4 Replies)
Discussion started by: roy121
4 Replies

8. UNIX for Beginners Questions & Answers

How to check if the script is already running?

I have one shell script in NAS shared location. Since NAS is mounted in many servers, script can be run from any of those servers. I want to make sure if the script is already running, it should not allow others to run it. I googled it and got some idea that i can touch one empty file in the... (8 Replies)
Discussion started by: thomasraj87
8 Replies

9. Shell Programming and Scripting

How to check day name is it saturday in bash shell script?

How to check the day name,is it saturday in bash shell script. If dayname = saturday then run the full load else run just the incremental loads end if Thank you very much for the helpful information. (4 Replies)
Discussion started by: cplusplus1
4 Replies

10. Shell Programming and Scripting

Check status of long running multiple curl commands in shell script

I am working on script. it reads a file which contains multiple lines Ex; curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=1 curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=2 curl --write-out %{http_code} --silent ... (2 Replies)
Discussion started by: oraclermanpt
2 Replies

LEARN ABOUT X11R4

systemd-rc-local-generator

SYSTEMD-RC-LOCAL-GENERATOR(8)				    systemd-rc-local-generator				     SYSTEMD-RC-LOCAL-GENERATOR(8)

NAME

       systemd-rc-local-generator - Compatibility generator for starting /etc/rc.local and /usr/sbin/halt.local during boot and shutdown

SYNOPSIS

       /lib/systemd/system-generators/systemd-rc-local-generator

DESCRIPTION

       systemd-rc-local-generator is a generator that checks whether /etc/rc.local exists and is executable, and if it is pulls the
       rc-local.service unit into the boot process. This unit is responsible for running this script during late boot. Note that the script will
       be run with slightly different semantics than the original System V version, which was run "last" in the boot process, which is a concept
       that does not translate to systemd. The script is run after network.target, but in parallel with most other regular system services.

       systemd-rc-local-generator also checks whether /usr/sbin/halt.local exists and is executable, and if it is pulls the halt-local.service
       unit into the shutdown process. This unit is responsible for running this script during later shutdown.

       Support for both /etc/rc.local and /usr/sbin/halt.local is provided for compatibility with specific System V systems only. However, it is
       strongly recommended to avoid making use of these scripts today, and instead provide proper unit files with appropriate dependencies for
       any scripts to run during the boot or shutdown processes.

       systemd-rc-local-generator implements systemd.generator(7).

SEE ALSO

       systemd(1), systemctl(1)

systemd 237													     SYSTEMD-RC-LOCAL-GENERATOR(8)
All times are GMT -4. The time now is 09:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy