How to get current user's primary group GID on Linux

Run

id_g_example.sh

id -g

id -g

to get the GID of the current user’s primary group. Example:

id_g_output.txt

$ id -g
1000

$ id -g
1000

You can also get the GID of another user’s primary group:

id_g_root_output.txt

$ id -g root
0

$ id -g root
0

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