Ubuntu Manpage: usermod - modify a user account
Provided by: passwd_4.1.5.1-1ubuntu9_amd64 NAME usermod - modify a user account SYNOPSIS usermod [options] LOGIN DESCRIPTION The usermod command modifies the system account files to reflect the changes that are specified on the command line. OPTIONS The options which apply to the usermod command are: -a, --append Add the user to the supplementary group(s). UID (User Identifier) and GID (Group Identifier) | Linux The third field represents the UID. Notice how the root user has the UID of 0. Most Linux distributions reserve the first 100 UIDs for system use. New users are assigned UIDs starting from 500 or 1000. For example, new users in Ubuntu start from 1000: When you create a new account, it will usually be give the next-highest unused number. Impossible to set default user of distribution installed I had the same issue after importing Ubuntu 18.04 and until the import/export is fixed (IMHO the problem lies there) you can use the LxRunOffline tool to set the default user: LxRunOffline.exe set-uid -n Name_of_Distro -v user_UID 👍 How to change user GID and UID in Ubuntu · Site How to change user GID and UID in Ubuntu usermod and groupmod simply change the UID and GID for their respective named counterpart usermod also changes the UID for the files in the homedir but naturally we can’t assume the only place files have been created is in the user’s homedir.
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