LKBEN10975: Howto add an existing linux user to a supplementary or secondary group with the usermod command

Symptom

You need to add an existing user to a linux group

Cause

none

Solution

You use the usermod comman with the -a and -G switch to do the job.

usermod -a -G thegroup theuser

This will add the existing user <theuser> to the group <thegroup>

About the Author

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.

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