A simple shell script to find out whether critical services are running or, not under Linux or Unix operating systems. The script can send notification using email.
#!/bin/bash # Name : service.chk # URL: https://bash.cyberciti.biz/monitoring/simple-process-checker-script/ # Purpose: A simple process checker. Find out if service is running or not. # Tested on: Debian and RHEL based system only. # ---------------------------------------------------------------------------- # Author: nixCraft http://www.cyberciti.biz/ # Copyright: 2009 nixCraft under GNU GPL v2.0+ # ---------------------------------------------------------------------------- # Last updated: 13/Mar/2013 - Added support for email and other enhancements # Last updated: 05/Dec/2011 - Added support for binary path check # ---------------------------------------------------------------------------- ## Change as per your distro _pgrep="/usr/bin/pgrep" _mail="/usr/bin/mail" ## Add binary list here _chklist="/usr/bin/php-cgi /usr/sbin/nginx /usr/sbin/lighttpd /usr/sbin/mysqld /usr/sbin/apache2 /usr/sbin/named /usr/sbin/pgsqld" ## yes | no _sendemail="no" ## Add your email id _email="your@mobile.email.id.example.com" ## Do not change below _failed="false" _service="Service:" _running() { local p="${1##*/}" local s="true" $_pgrep "${p}" >/dev/null || { s="false"; _failed="true"; _service="${_service} $1,"; } [[ "$s" == "true" ]] && echo "$1 running" || { echo -n "$1 not running"; [[ ! -f "$1" ]] && echo " [ $1 not found ]" || echo ; } } ## header echo "Service status on ${HOSTNAME} @ $(date)" echo "------------------------------------------------------" ## Check if your service is running or not for s in $_chklist do _running "$s" done ## Send a quick email update (good for cron jobs) ## [[ "$_failed" == "true" && "$_sendemail" == "yes" ]] && { _mess="$_service failed on $HOSTNAME @ $(date)"; $_mail -s 'Service not found' "$_email" < "${_mess}"; }
Sample outputs:
- RSS feed or Weekly email newsletter
- Share on Twitter • Facebook • 5 comments... add one ↓
Category | List of Unix and Linux commands |
---|---|
File Management | cat |
Firewall | Alpine Awall • CentOS 8 • OpenSUSE • RHEL 8 • Ubuntu 16.04 • Ubuntu 18.04 • Ubuntu 20.04 |
Network Utilities | dig • host • ip • nmap |
OpenVPN | CentOS 7 • CentOS 8 • Debian 10 • Debian 8/9 • Ubuntu 18.04 • Ubuntu 20.04 |
Package Manager | apk • apt |
Processes Management | bg • chroot • cron • disown • fg • jobs • killall • kill • pidof • pstree • pwdx • time |
Searching | grep • whereis • which |
User Information | groups • id • lastcomm • last • lid/libuser-lid • logname • members • users • whoami • who • w |
WireGuard VPN | Alpine • CentOS 8 • Debian 10 • Firewall • Ubuntu 20.04 |
worked perfectly…once I changed permissions
Is there a way to get this to process the “_chklist” with a comma delimited instead of a space between the processes?
e a Bash shell script that creates 10 files under the directory /tmp/ with the names:
Foo1, foo2, … etc. then write in each of them “Hello in 1”, Hello in 2”, …etc.
Then rename them to the names CPE471_0_file, CPE471_1_file , CPE471_9_file , etc.
Won’t send me a message via email. says error on line 51..
change the section under: ## Send a quick email update (good for cron jobs) ##
to
## Send a quick email update (good for cron jobs) ##
[[ “$_failed” == “true” && “$_sendemail” == “yes” ]] &” | $_mail -s ‘Service not Running’ “$_email”;
}