Comments on: How to Create a Test File of Any Size in Linux https://www.tecmint.com/create-exact-size-file-linux-dd-fallocate/ Tecmint - Linux Howtos, Tutorials, Guides, News, Tips and Tricks. Fri, 08 May 2026 05:25:22 +0000 hourly 1 By: Ravi Saive https://www.tecmint.com/create-exact-size-file-linux-dd-fallocate/comment-page-1/#comment-2409457 Fri, 08 May 2026 04:48:04 +0000 http://www.tecmint.com/?p=5309#comment-2409457 In reply to Hai Vu.

@Hai,

Good point.

The truncate command is one of the most versatile tools for this task because it can create empty files of any size, expand existing files, or shrink them without needing to rewrite the entire file contents.

I’ve updated the article to include truncate and also added a comparison between dd, fallocate, and truncate to explain how each one behaves differently when creating large files.

]]> By: Hai Vu https://www.tecmint.com/create-exact-size-file-linux-dd-fallocate/comment-page-1/#comment-2409240 Thu, 07 May 2026 07:11:06 +0000 http://www.tecmint.com/?p=5309#comment-2409240 The truncate command does this and more. It can also shrink or expand file sizes.

]]>