Checksum on string

Question

Is there a way to calculate a checksum on a string in Linux? The checksum commands that I have seen (cksum, md5sum, sha1sum, etc.) all require a file as input and I do not have a file. I only have a path to a location and want to calculate the checksum on that path.

@Flimzy: That would try to run `md5sum` on a file at that location, not on the string itself. — Oliver Charlesworth, Aug 28 '11 at 17:55

score 49 · Accepted Answer · answered Aug 28 '11 at 17:53

49

echo -n 'exampleString' | md5sum

should work.

answered Aug 28 '11 at 17:53

ashiaka

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How can I get a CRC32 instead of MD5 checksum? Thank you. – Antonio Petricca Jul 15 '17 at 14:01
The only issue is that CRLF and LF line break types will output different hashsum, so have to be careful about the environment and the terminal used. – Shayan Jul 11 '22 at 14:18

Nhoya · Answer 2 · 2015-03-14T16:21:18.447

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echo -n "yourstring" |md5sum
echo -n "yourstring" |sha1sum
echo -n "yourstring" |sha256sum

don't forget -n or the result will change (cuz the newline will be parsed)

edited Mar 14 '15 at 16:21

answered Mar 14 '15 at 15:35

Nhoya

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@ gniourf_gniourf stay easy, i gived the answer to him, with and without my code.. btw ./gensum -t gniourf_gniourf md5: d41d8cd98f00b204e9800998ecf8427e - sha1: adc83b19e793491b1c6ea0fd8b46cd9f32e592fc - sha256: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 - it works. – Nhoya Mar 14 '15 at 16:13
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And by the way, [these are not the correct hash sums of `gniourf_gniourf`](http://www.fileformat.info/tool/hash.htm?text=gniourf_gniourf). – gniourf_gniourf Mar 14 '15 at 16:19
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Oh, sorry man i edit my answer, ok? Yes, i saw the problem for the hash – Nhoya Mar 14 '15 at 16:20
But now, in what is your answer different from the previous accepted answer? – gniourf_gniourf Mar 14 '15 at 16:23
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Sharon asked for sha1, sha256 and md5, i gived all the 3 and btw i didn't see the epoch, sorry again oh and problem solved in the script :P – Nhoya Mar 14 '15 at 16:25

Checksum on string

2 Answers2