/usr/local/bin/remote_diff

remote_diff

#!/bin/bash
usage ()
{
cat << EOF
$0: diff the output of a command on two diffrent servers
Usage $0 user@host1 user@host2 "command"
EOF
  exit 1
}

if [[ -z "$@" ]]; then usage
fi


#Assume root I do this so that complete -W works. I like pressing tab rather than typing. 
if ! [[ "$1" == *@* ]]; then
  firsthost="root@"$1""
else
  firsthost="$1"
fi

if ! [[ "$2" == *@* ]]; then
  secondhost="root@"$2""
else
  secondhost="$2"
fi

#run remote diff
diff <(ssh $firsthost ""$3"" ) <(ssh $secondhost ""$3"")