WHAT IS CHECKSUM IN LINUX?
Checksum is like a digital fingerprint of a file. In technical terms,
A checksum is a small-sized datum from a block of digital data for the purpose of detecting errors which may have been introduced during its transmission or storage.
Well, checksum is a long string of data containing various letters and numbers. You’ll generally find them while downloading files from the web, e.g. Linux distribution image, software packages etc.
Most common use of checksum is in checking if the downloaded file is corrupted.
For instance, Ubuntu MATE download page includes SHA256 checksum for every image available there. So, after you downloaded an image, you can generate SHA256 checksum for it and verify if the checksum value matches the one mentioned on the site.
If it doesn’t, that will mean your downloaded image’s integrity is compromised (maybe it was corrupted during the download process). We will use Ubuntu Mate…
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