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Useful for checking if there are differences between local and remote files.
A little messy, but functional. Requires vim >= 7.x.
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.
opens the output of some command as a file so this also works with graphical editors like meld, kdiff3 etc
meld <(ssh $remote_site cat .zshrc) .zshrc
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