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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
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Compare a remote file with a local file

Terminal - Compare a remote file with a local file
diff /path/to/localfile <(ssh user@host cat /path/to/remotefile)
2013-05-24 09:24:31
User: mc0e
Functions: cat diff ssh
Compare a remote file with a local file

Or, if you have restricted access for sftp only, I think you can still do this:

diff /path/to/localfile <(scp user@host:/path/to/remotefile >(cat))


There is 1 alternative - vote for the best!

Terminal - Alternatives
ssh user@host cat /path/to/remotefile | diff /path/to/localfile -
2009-02-04 11:33:19
User: root
Functions: cat diff ssh

Useful for checking if there are differences between local and remote files.

vimdiff <file> scp://[<user>@]<host>/<file>
diff <(ssh user@host cat /path/to/remotefile) /path/to/localfile
vimdiff scp://[user@]host1/<file> scp://[user@]host2/<file>
2009-07-08 22:39:36
User: Tekhne

A little messy, but functional. Requires vim >= 7.x.

test "$(md5sum /local/file | cut -d' ' -f1)" == "$(ssh root@xen -- md5sum /remote/file | cut -d' ' -f1)" && echo "Match" || echo "Differ"
2015-04-24 03:09:33
User: gnif
Functions: echo test

This method does not transfer the contents of the entire file, instead it computes a md5 sum of the file on each end so that large files can be compared without transferring them across the net.

Know a better way?

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