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while [ 1 -ne 6 ]; do
pid=`ps -ef | grep -v "grep" | grep "trans_gzdy" | cut -c10-17`
ps gv $pid | head -2
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Useful for massive files where doing a full diff would take too long. This just runs diff on the first 500 lines of each. The use of subshells to feed STDIN is quite a useful construct.
Must be done as root - will cause subsequent ssh connections to use the identities available via the [user]'s agent socket.