Calculate the SHA1 checksum of a file

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How to calculate the SHA1 digest of a file in a shell?

checksum sha1

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Iizuki‭

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There's a sha1sum tool in GNU coreutils.

Here's

$ sha1sum emptyfile
da39a3ee5e6b4b0d3255bfef95601890afd80709  emptyfile

Note the spaces and the filename (emptyfile in this case) in the output. They may need to be accounted for in pipelines.

posted 7 months ago

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6mo ago

Iizuki‭

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Please clarify "trailing spaces" (2 comments)

"touch file" could be confusing to newbies, it simply creates an empty file with filename `file` if i... (2 comments)

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RHash is a popular all-in-one hashing and checksum tool available in most Linux repositories (or can be downloaded from SourceForge). Usage example for sha1 sum:

$ rhash --sha1 file

posted 6 months ago

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amarok‭

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Calculate the SHA1 checksum of a file

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