Linux fallocate Command

What is Linux fallocate Command?#

In this tutorial we learn how to use fallocate command in Linux. fallocate command is fallocate - preallocate or deallocate space to a file.

fallocate Syntax#

fallocate [-c|-p|-z] [-o offset] -l length [-n] filename
fallocate -d [-o offset] [-l length] filename
fallocate -x [-o offset] -l length filename

fallocate Examples#

fallocate Command Manual / Help#

We can use man and info command to see the manual page of fallocate command. fallocate command also have --help option to show list of options.

To open man page for fallocate command we can use command below. To exit man or info page you can press q.

man fallocate

To open info page for fallocate command we can use command below.

info fallocate

To open help page from fallocate command we can run command below.

fallocate --help

Linux fallocate Command Source Code#

You can find fallocate command source code from the folowing repositories:

• fallocate source code on GitHub
• util-linux releases on kernel.org

Related Linux Commands#

You can read tutorials of related Linux commands below:

• Linux w Command
• Linux id Command
• Linux who Command

Summary#

In this tutorial we learn how to use fallocate in Linux with practical examples. Visit our Linux Commands guide to learn more about using command line interface in Linux.