Create a big file on Linux

Written byPhuoc Nguyen

Tags

Command Line

Created

17 May, 2021

Sometimes we need to have a random file of given size. We can name some common examples such as

Test the file upload functionality
Test if the application is able to handle a large set of data

On Linux we can create an empty file of particular size with the `dd` command. The following command creates `sample.txt` file of `1GB`:

$ dd if=/dev/urandom of=sample.txt bs=1G count=1

The file size is the result of `bs * count` in bytes.

#See also

Create a file of any size

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Phước Nguyễn

Create a big file on Linux

#See also

Questions? 🙋

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