![]() ![]() Now, I will be using the diff command with the same options that I did earlier to compare the two files: Fedora_MD5 and MD5 (file containing the checksum from the website to check authenticity): diff -sq Fedora_MD5 MD5Īnd as you can see, the md5 checksum is matched! This means, the file is not corrupted and can be used without any hesitation. Sure, you can check by yourself manually but that's not the way I'd go.įirst, let's save the SHA256 checksum to the file by redirecting the output: sha256sum TargetFile | awk '' > Fedora_MD5 I have saved this checksum in the file named SHA256 that I'll be using in the later part of this tutorial to test the integrity.įirst, let's check the checksum of the downloaded ISO by using the sha256sum command: sha256sum TargetFileĪ 65-character long string and the filename are separated by space. In this guide, I'm going to use the Fedora ISO file, and the end checksum result should be the following: 9c69005baafdba6e4ff04c1cf4779121b7fc9aacab80b4633394576da336a515Īnd if you are curious how I ended up with the above checksum, I found this on the downloads (which you'll too). Secure Hash Algorithms (SHA-1, SHA-2, etc).Īnd in this guide, I will be discussing both of them.There are various types of checksum algorithms available but you will find the implementation of the following two in most cases: Perform a Checksum in the Ubuntu command line You will find checksums while downloading files from the internet such as software packages, ISO files, etc. In simple terms, the checksum can be considered a digital fingerprint of a file made up of characters and numbers. Want to check whether the downloaded file is corrupted or not? The easiest way is to verify its checksum. ![]()
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