How to create a large file on a Linux system?

You can use fallocate command to quickly create a large file in Linux systems.

Example:

Create a large file of size 1 GB:

## Create a large file of size 1 GB
## fallocate -l <Size_in_GB>G <filename>
fallocate -l 1G myfile.txt

## Create a large file of size 1 GB

## fallocate -l G

fallocate -l 1G myfile.txt

Get the file size:

## Get the file size
ls -l --b=G myfile.txt
## or
du -sh myfile.txt

## Get the file size

ls -l --b=G myfile.txt

## or

du -sh myfile.txt

Remove the file:

## Remove the file
rm myfile.txt

1 2	## Remove the file rm myfile.txt

Tags: FAQ, Linux