Change uid on Linux machines

Going through and changing a bunch of user ids. I'm doing this over time and keep forgetting the syntax and run a man every time. Thought I'd put the skeleton command here:

usermod -d /path/to/newhomedir -m -l newuserid originaluserid

Update a uid from user1 to newuser1:

 usermod -d /home/newuser1 -m -l newuser1 user1

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