I have a file (users_uid) with users and uid are two parameters as given below :
assds 611 dsdsd 612 xyzx 613 rerer 614
These users exist in the machine. I want to change the uid of each user to that value given right for the username. I know that I can modify the uid using
usermod -u <uid> <user>. But I don't know how to read the two values in the file and put them as the 2 parameters in a for loop with usermod command.