useradd -g option doesn't seem to be working
I tried:
sudo useradd -s "/bin/false" -g [existingGroupName] [userNameToAdd]
After the command I looked it up in /etc/group, but the user is not in the [existingGroupName]. Why is that so?
command-line groups useradd
edited Jan 13 at 6:41
heemayl
66.3k8139212
asked Jan 13 at 5:15
SmileSmile
481320
add a comment |
I tried:
sudo useradd -s "/bin/false" -g [existingGroupName] [userNameToAdd]
After the command I looked it up in /etc/group, but the user is not in the [existingGroupName]. Why is that so?
command-line groups useradd
edited Jan 13 at 6:41
heemayl
66.3k8139212
asked Jan 13 at 5:15
SmileSmile
481320
add a comment |
I tried:
sudo useradd -s "/bin/false" -g [existingGroupName] [userNameToAdd]
After the command I looked it up in /etc/group, but the user is not in the [existingGroupName]. Why is that so?
command-line groups useradd
edited Jan 13 at 6:41
heemayl
66.3k8139212
asked Jan 13 at 5:15
SmileSmile
481320
I tried:
sudo useradd -s "/bin/false" -g [existingGroupName] [userNameToAdd]
After the command I looked it up in /etc/group, but the user is not in the [existingGroupName]. Why is that so?
command-line groups useradd
command-line groups useradd
edited Jan 13 at 6:41
heemayl
66.3k8139212
asked Jan 13 at 5:15
SmileSmile
481320
edited Jan 13 at 6:41
heemayl
66.3k8139212
asked Jan 13 at 5:15
SmileSmile
481320
edited Jan 13 at 6:41
heemayl
66.3k8139212
edited Jan 13 at 6:41
heemayl
66.3k8139212
edited Jan 13 at 6:41
heemayl
66.3k8139212
66.3k8139212
asked Jan 13 at 5:15
SmileSmile
481320
asked Jan 13 at 5:15
SmileSmile
481320
asked Jan 13 at 5:15
SmileSmile
481320
481320
add a comment |
add a comment |
1 Answer
1
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oldest
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That's because /etc/group shows the secondary group members (users), not primary ones.
-g in useradd sets the primary group the user would belong to, which must be only one; whereas -G adds user to single or multiple secondary groups.
You can check user's primary group (and secondary groups) along with IDs with the id command:
id <username>
As a side note, unless intentional, you should use the adduser Perl wrapper of useradd instead of using it directly.
Another note would be to use getent group instead of directly reading/parsing /etc/group for getting a group info e.g.:
getent group <group_name>
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
1
@Smile Yes,/etc/passwd:)
– heemayl
Jan 13 at 6:58
add a comment |
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1 Answer
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active
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1 Answer
1
active
oldest
votes
active
oldest
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active
oldest
votes
That's because /etc/group shows the secondary group members (users), not primary ones.
-g in useradd sets the primary group the user would belong to, which must be only one; whereas -G adds user to single or multiple secondary groups.
You can check user's primary group (and secondary groups) along with IDs with the id command:
id <username>
As a side note, unless intentional, you should use the adduser Perl wrapper of useradd instead of using it directly.
Another note would be to use getent group instead of directly reading/parsing /etc/group for getting a group info e.g.:
getent group <group_name>
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
1
@Smile Yes,/etc/passwd:)
– heemayl
Jan 13 at 6:58
add a comment |
That's because /etc/group shows the secondary group members (users), not primary ones.
-g in useradd sets the primary group the user would belong to, which must be only one; whereas -G adds user to single or multiple secondary groups.
You can check user's primary group (and secondary groups) along with IDs with the id command:
id <username>
As a side note, unless intentional, you should use the adduser Perl wrapper of useradd instead of using it directly.
Another note would be to use getent group instead of directly reading/parsing /etc/group for getting a group info e.g.:
getent group <group_name>
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
1
@Smile Yes,/etc/passwd:)
– heemayl
Jan 13 at 6:58
add a comment |
That's because /etc/group shows the secondary group members (users), not primary ones.
-g in useradd sets the primary group the user would belong to, which must be only one; whereas -G adds user to single or multiple secondary groups.
You can check user's primary group (and secondary groups) along with IDs with the id command:
id <username>
As a side note, unless intentional, you should use the adduser Perl wrapper of useradd instead of using it directly.
Another note would be to use getent group instead of directly reading/parsing /etc/group for getting a group info e.g.:
getent group <group_name>
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
That's because /etc/group shows the secondary group members (users), not primary ones.
-g in useradd sets the primary group the user would belong to, which must be only one; whereas -G adds user to single or multiple secondary groups.
You can check user's primary group (and secondary groups) along with IDs with the id command:
id <username>
As a side note, unless intentional, you should use the adduser Perl wrapper of useradd instead of using it directly.
Another note would be to use getent group instead of directly reading/parsing /etc/group for getting a group info e.g.:
getent group <group_name>
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
answered Jan 13 at 6:38
heemaylheemayl
66.3k8139212
66.3k8139212
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
1
@Smile Yes,/etc/passwd:)
– heemayl
Jan 13 at 6:58
add a comment |
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
1
@Smile Yes,/etc/passwd:)
– heemayl
Jan 13 at 6:58
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
Oh, /etc/group is only for the secondary group members. Is there any file only for the primary member? Thanks for the tips, id and getent command as well.
– Smile
Jan 13 at 6:57
1
1
@Smile Yes,
/etc/passwd :)– heemayl
Jan 13 at 6:58
@Smile Yes,
/etc/passwd :)– heemayl
Jan 13 at 6:58
add a comment |
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