{"id":11156,"date":"2021-10-15T11:26:54","date_gmt":"2021-10-15T11:26:54","guid":{"rendered":"https:\/\/linuxways.net\/?p=11156"},"modified":"2021-10-15T11:26:54","modified_gmt":"2021-10-15T11:26:54","slug":"free-command-in-linux","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/centos\/free-command-in-linux\/","title":{"rendered":"Free Command in Linux"},"content":{"rendered":"

Introduction<\/h2>\n

free command is used to check the total amount of free space available with used memory and swap memory in your system.<\/p>\n

This command is very necessary for Linux administrators when you want to install a large program. It saves time to check the capacity thereby making the installation process more smooth. We will show you how to use the free command through several examples as you go through below.<\/p>\n

The syntax of free command<\/h2>\n
$ free [options]<\/pre>\n
<\/p>\n
total<\/strong>: total installed memory<\/p>\n
used<\/strong>: total used memory<\/p>\n
free<\/strong>: free available memory<\/p>\n
shared<\/strong>: memory used by tmpfs<\/p>\n
buff<\/strong>: memory used by the OS kernel<\/p>\n
cache<\/strong>: memory used to store temporary data<\/p>\n
available<\/strong>: total available memory<\/p>\n
options<\/strong>:<\/p>\n
-b<\/strong> output with unit bytes<\/p>\n
$ free -b<\/pre>\n
Output:<\/p>\n
<\/p>\n
-k<\/strong> output with unit kilobytes<\/p>\n
$ free -k<\/pre>\n
Output: <\/p>\n
-m<\/strong> output with unit megabytes<\/p>\n
$ free -m<\/pre>\n
Output:<\/p>\n
<\/p>\n
-g <\/strong>output with unit gigabytes<\/p>\n
$ free -g<\/p>\n
Output:<\/p>\n
<\/p>\n
-t <\/strong>more statistics on total memory capacity including swap space<\/p>\n
$ free -t<\/pre>\n
Output:<\/p>\n
<\/p>\n
-s <\/strong>statistics with delay time appearing<\/p>\n
For example, I want to make statistics every 3 seconds:<\/p>\n
$ free -s3<\/pre>\n
Output:<\/p>\n
<\/p>\n
Conclusion<\/h2>\n
In this tutorial, we guided you on how to use the free command with some examples.<\/p>\n
Thanks for reading!<\/p>","protected":false},"excerpt":{"rendered":"
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