A simple shell script to find out if a critical service is running and is suitable for Linux or UNIX operating systems.
The script can also send notifications using e-mail.
Code:
Copy Code code as follows:
#!/bin/bash
# Name:service.chk Service Detection Script
# # According to their own environment modified
_pgrep= "/usr/bin/pgrep"
_mail= "/usr/bin/mail"
# # Environment variables
_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"
# # Email
_email= "Test@jb51.net"
# # Do not modify the following configuration
_failed= "false"
_service= "Service:"
_running () {
Local p= "${1##*/}"
Local s= "true"
$_pgrep "${p}" >/dev/null | | {s= "false"; _failed= "true"; _service= "${_service} $";}
[["$s" = "true"]] && echo "$ Running" | | {echo-n "not running"; [[!-f ' $]] && echo ' [not found] ' | | echo; }
}
# # Header
echo "Service status on ${hostname} @ $ (date)"
echo "------------------------------------------------------"
# # Check If your service is running or not
For S in $_chklist
Todo
_running "$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}";
}
Results:
Here are some small pieces of code, we can also refer to the following
Script one:
Copy Code code as follows:
#!/bin/sh
Program=xxxx #进程名
Sn= ' Ps-ef | grep $program | grep-v grep |awk ' {print $} ' #获得进程端口号
If [' ${sn} ' = '] #如果为空 to indicate that the process did not start
Then
Nohup/home/oracle/xxxx & #后台启动进程
echo Start OK!
Else
Echo Running
Fi
Script two:
Copy Code code as follows:
#!/bin/sh
Ps-ef |grep./fileserver >/dev/null 2>&1 #检测进程写入/dev/null
If [$?-eq 0] #0为正常
Then
Echo Logprocess Run ok!
Else
Nohup/home/oracle/xxxx &
echo Start OK!
Fi
Script Three:
Copy Code code as follows:
#!/bin/sh
Count= ' Ps-fe |grep "a.out" | Grep-v "grep" | Wc-l '
If [$count-lt 1]; Then
/root/sh/restart.sh
Script four:
Copy Code code as follows:
Pname= "AUTHD"
pathname=/root/cauthd/build/
Length= ' ps-ef|grep ' $PNAME ' |grep-v grep|cut-b 49-200|wc-c '
if test $LENGTH-eq 0
Then
CD $PATHNAME
Nohup $PNAME >/dev/null
Script Five:
Copy Code code as follows:
#! /bin/bash
echo "Please enter the process name:"
Read process
echo "The process you are looking for is $process, looking for ..."
PS > Text1
grep "$process" Text1
Declare-i a=$?
If [$a-eq 0]
Then
echo "This process exists"
Else
echo "This process does not exist"
Fi
RM Text1
