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May 19, 2015 - A Look At The New Commandlinefu
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recurisvely md5 all files in a tree

Terminal - recurisvely md5 all files in a tree
find ./backup -type f -print0 | xargs -0 md5sum > /checksums_backup.md5
2009-02-12 19:39:12
User: hooobs
Functions: find md5sum xargs
recurisvely md5 all files in a tree


There are 2 alternatives - vote for the best!

Terminal - Alternatives
find . -type f -name '*' -exec md5sum '{}' + > hashes.txt

Know a better way?

If you can do better, submit your command here.

What others think

find ./backup -type f -exec md5sum '{}' ';'

Comment by zb 479 weeks and 4 days ago

zb: that's going to be much slower.

Comment by wwest4 479 weeks and 4 days ago

wwes4, 1st one can be error, if there is many files on the tree.

Comment by zb 479 weeks and 4 days ago

find ./backup -type f |perl -p -e 's/\n//;$l=$l+length($_); if ($l > 1024) {print "\nmd5sum ";$l=0};print " \047$_\047 ";$_=""' |sh

my long dirty version, prevent whitespacing, long commandlines

Comment by zb 479 weeks and 4 days ago

...or you could just use xargs -0, which works like a charm against any number of files (try it with find / if you don't believe it).

Comment by wwest4 479 weeks and 4 days ago

thanks! clear now.

Comment by zb 479 weeks and 4 days ago

If this is the wrong place for this request, please redirect me to the correct spot.

I'm new to Unix and took over a script that has the command "find . -type f -print | xargs -0 md5sum > md5sum.txt" in it. However it errors saying the '0' is an illegal option. How can I correct this command so it works again? I am on a Sun Solaris 10 system.

Comment by wagneti 454 weeks and 4 days ago

Would work better with an append redirect...

find ./backup -type f -print0 | xargs -0 md5sum >> /checksums_backup.md5
Comment by realist 452 weeks and 5 days ago

Your point of view

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