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I created a group using the following command:

sudo groupadd myGroup

Then I tried to run gedit and set its primary group to myGroup:

sg myGroup gedit

But sg is asking me for what I assume is the group password.

Does a group created using groupadd have a default password?

Edit:

When I make myGroup part of my user's groups, then sg no longer asks me for the group password. But I do not want to make myGroup part of my user's groups.

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  • Did you make sure your user became a member of myGroup. I am not seeing that part in the question. Commented Dec 12, 2017 at 5:09
  • @Tigger I edited my question. Commented Dec 12, 2017 at 5:14

1 Answer 1

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No, by default groupadd doesn’t set group passwords (which means they are disabled, and only users who are members of a group can use the group). To set a password, use the -p option to groupadd (but read its documentation first), or better yet, run gpasswd.

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  • I did gpasswd myGroup and set a password. And then I did sg myGroup gedit, but sg gave me an "Invalid password." error when I entered the group password. Commented Dec 12, 2017 at 7:16
  • Weird, it works for me... Commented Dec 12, 2017 at 8:22
  • I'll try it on a fresh install of Linux. Commented Dec 12, 2017 at 8:37
  • It worked for me on Ubuntu 9.04 and Ubuntu 16.04, but it didn't work on Ubuntu 10.10! Commented Dec 12, 2017 at 10:54

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