How To Clear Memory Cache On Linux
Hello Guys Linux in most famous operating system among hackers or in term of security and free unlike Microsoft windows linux has many feature you can run it from your usb like portable software just boot from USB there many tool which help you to boot from USB. By default, every Linux OS has an efficient memory management system used to clear the buffer cache periodically. You can manually clear memory cache on Linux with the following simple command:
Clear memory Cache on Linux
[email protected]:~$ sudo sh -c "sync; echo 3 > /proc/sys/vm/drop_caches"
However, if you want to force the Linux OS to do clearing memory cache on a particular interval, just add the command to cron job. Here, I show you how.
Open up your terminal and enter the following command to create a file called cacheclear.sh. Say for example, I createcacheclear.sh file in my /home directory:
[email protected]:~$ sudo vi /home/cacheclear.sh
Add the following lines to cacheclear.sh file:
#!/bin/sh sudo sh -c "sync; echo 3 > /proc/sys/vm/drop_caches"
Save and exit the file. Now add this file to your crontab:
[email protected]:~$ sudo crontab -e
This command opens the current user cron file. If you want to set it to some other user, use the following command instead:
[email protected]:~$ sudo crontab -e -u username
Add the following line at the end:
0 * * * * /home/cacheclear.sh
Save and exit the file. Once you’re done, cron job will run this command every hour and will clear the system memory caches.
After testing with the above command, the sample results are shown in the below screen shots.
Before running the memory cache clearing script.