sysadmin

# This is the script for release the memory cache everyday # top -b -n 1 | head > /tmp/file1.txt sleep 10 sync; echo 1 > /proc/sys/vm/drop_caches sleep 20 top -b -n 1 | head  > /tmp/file2.txt cat /tmp/file1.txt /tmp/file2.txt > /tmp/ram.txt EMAIL_BODY=" Hello Sysadmin Team, This is the RAM status after releases: $(cat /tmp/ram.txt) Thanks, DC Team " echo "Subject: RAM status for ABC Server" "$EMAIL_BODY" | /opt/zimbra/postfix-2.10.3.2z/sbin/sendmail -t alert@domain.com. The Above Script will clear the Unused RAM . This will send the email before and after Clearing the RAM. Use This script when very Less number of users are using the server. This script will run on Linux Server (RedHat/Centos). The Script can be run during Night Time using Crontab. Kindly update the Email ID and Sendmail path correctly as per  your server.

#! /bin/bash TEMP=$(sensors | grep "id 0" | cut -d + -f2 | cut -d . -f1) if [ "$TEMP" -ge 40 ]; then echo $TEMP date > /tmp/temp sensors >> /tmp/temp TEMP_BODY=" Hello Helpdesk Team, This is the Temperature Alert Message for ABC Server at DC Location,CITY : $(cat /tmp/temp) Regards, Datacenter TEAM " echo "Subject: ALERT High Temperature for Server at DC Location " "$TEMP_BODY" | /opt/postfix-2.10.3.2z/ sbin/sendmail -t email@domain.com fi In this Script Replace the email@domain.com with Correct Email id and Sendmail path with correct Send-mail path. In this script we are monitoring the CPU Temperature. This Script will work on Linux Server (Red Hat/Centos )