Change gid of a specific group
I'd like to change group id of a specific group. There are so may solution for changing the gid of a file or directories. But that's not what I want. Is there a way to do that?
group
edited Mar 9 '12 at 13:20
sr_
13.1k3344
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
add a comment |
I'd like to change group id of a specific group. There are so may solution for changing the gid of a file or directories. But that's not what I want. Is there a way to do that?
group
edited Mar 9 '12 at 13:20
sr_
13.1k3344
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
add a comment |
I'd like to change group id of a specific group. There are so may solution for changing the gid of a file or directories. But that's not what I want. Is there a way to do that?
group
edited Mar 9 '12 at 13:20
sr_
13.1k3344
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
I'd like to change group id of a specific group. There are so may solution for changing the gid of a file or directories. But that's not what I want. Is there a way to do that?
group
group
edited Mar 9 '12 at 13:20
sr_
13.1k3344
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
edited Mar 9 '12 at 13:20
sr_
13.1k3344
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
edited Mar 9 '12 at 13:20
sr_
13.1k3344
edited Mar 9 '12 at 13:20
sr_
13.1k3344
edited Mar 9 '12 at 13:20
sr_
13.1k3344
13.1k3344
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
asked Mar 9 '12 at 13:01
mibzermibzer
4522921
4522921
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
The GID is the primary identifier of the group. As far as the system is concerned, a different GID is a different group. So to change the GID, you're going to have to modify all the places where that GID is used.
You should avoid treating the GID as significant and use group names instead; you can change the name of a group with a single command (on Linux: groupmod -n NEW_GROUP_NAME OLD_GROUP_NAME).
However, if you do really want to change the GID, this is how:
- First, you may need to log out users in the group and kill processes who have that group as their effective, real or saved group.
- Change the entry in the group database. On Linux, run
groupmod -g NEWGID GROUPNAME. On other systems, use that system's administration tool, orvigrif available, or edit/etc/groupas applicable.
Change the group of all the files on your system that belong to the old group.
find / -gid OLDGID ! -type l -exec chgrp NEWGID {} ;
chgrp clears suid and sgid flags, restore those.
- If you have any archive that uses the old GID, rebuild it.
- If you have any configuration file or script that references the old GID, update it.
- Restart all processes that must use the new GID.
edited Jul 26 '16 at 13:32
oakymax
1034
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
2
Suggest usingchgrp -h ...instead ofchgrp .... Without-h, the target of any relevant symlink will have its group changed.
– Mark Plotnick
Jun 6 '14 at 21:44
3
groupmodtake's a name as the main argument for me...groupmod -g NEWGID GROUPNAME
– Matt
Nov 19 '14 at 15:41
add a comment |
The easiest way is to use groupmod -g <NEW_GID> <groupname>
Another way is to edit /etc/group directly. The third field in each column is the gid.
If the changed group is the main group of a user, /etc/passwd need to be adapted, too: usermod -g <NEW_GID> <username>.
edited Feb 9 at 0:38
mgarey
1034
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
1
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
add a comment |
find /path -group foo -print0 | xargs -0 chgrp bar
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
add a comment |
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3 Answers
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active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
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oldest
votes
The GID is the primary identifier of the group. As far as the system is concerned, a different GID is a different group. So to change the GID, you're going to have to modify all the places where that GID is used.
You should avoid treating the GID as significant and use group names instead; you can change the name of a group with a single command (on Linux: groupmod -n NEW_GROUP_NAME OLD_GROUP_NAME).
However, if you do really want to change the GID, this is how:
- First, you may need to log out users in the group and kill processes who have that group as their effective, real or saved group.
- Change the entry in the group database. On Linux, run
groupmod -g NEWGID GROUPNAME. On other systems, use that system's administration tool, orvigrif available, or edit/etc/groupas applicable.
Change the group of all the files on your system that belong to the old group.
find / -gid OLDGID ! -type l -exec chgrp NEWGID {} ;
chgrp clears suid and sgid flags, restore those.
- If you have any archive that uses the old GID, rebuild it.
- If you have any configuration file or script that references the old GID, update it.
- Restart all processes that must use the new GID.
edited Jul 26 '16 at 13:32
oakymax
1034
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
2
Suggest usingchgrp -h ...instead ofchgrp .... Without-h, the target of any relevant symlink will have its group changed.
– Mark Plotnick
Jun 6 '14 at 21:44
3
groupmodtake's a name as the main argument for me...groupmod -g NEWGID GROUPNAME
– Matt
Nov 19 '14 at 15:41
add a comment |
The GID is the primary identifier of the group. As far as the system is concerned, a different GID is a different group. So to change the GID, you're going to have to modify all the places where that GID is used.
You should avoid treating the GID as significant and use group names instead; you can change the name of a group with a single command (on Linux: groupmod -n NEW_GROUP_NAME OLD_GROUP_NAME).
However, if you do really want to change the GID, this is how:
- First, you may need to log out users in the group and kill processes who have that group as their effective, real or saved group.
- Change the entry in the group database. On Linux, run
groupmod -g NEWGID GROUPNAME. On other systems, use that system's administration tool, orvigrif available, or edit/etc/groupas applicable.
Change the group of all the files on your system that belong to the old group.
find / -gid OLDGID ! -type l -exec chgrp NEWGID {} ;
chgrp clears suid and sgid flags, restore those.
- If you have any archive that uses the old GID, rebuild it.
- If you have any configuration file or script that references the old GID, update it.
- Restart all processes that must use the new GID.
edited Jul 26 '16 at 13:32
oakymax
1034
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
2
Suggest usingchgrp -h ...instead ofchgrp .... Without-h, the target of any relevant symlink will have its group changed.
– Mark Plotnick
Jun 6 '14 at 21:44
3
groupmodtake's a name as the main argument for me...groupmod -g NEWGID GROUPNAME
– Matt
Nov 19 '14 at 15:41
add a comment |
The GID is the primary identifier of the group. As far as the system is concerned, a different GID is a different group. So to change the GID, you're going to have to modify all the places where that GID is used.
You should avoid treating the GID as significant and use group names instead; you can change the name of a group with a single command (on Linux: groupmod -n NEW_GROUP_NAME OLD_GROUP_NAME).
However, if you do really want to change the GID, this is how:
- First, you may need to log out users in the group and kill processes who have that group as their effective, real or saved group.
- Change the entry in the group database. On Linux, run
groupmod -g NEWGID GROUPNAME. On other systems, use that system's administration tool, orvigrif available, or edit/etc/groupas applicable.
Change the group of all the files on your system that belong to the old group.
find / -gid OLDGID ! -type l -exec chgrp NEWGID {} ;
chgrp clears suid and sgid flags, restore those.
- If you have any archive that uses the old GID, rebuild it.
- If you have any configuration file or script that references the old GID, update it.
- Restart all processes that must use the new GID.
edited Jul 26 '16 at 13:32
oakymax
1034
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
The GID is the primary identifier of the group. As far as the system is concerned, a different GID is a different group. So to change the GID, you're going to have to modify all the places where that GID is used.
You should avoid treating the GID as significant and use group names instead; you can change the name of a group with a single command (on Linux: groupmod -n NEW_GROUP_NAME OLD_GROUP_NAME).
However, if you do really want to change the GID, this is how:
- First, you may need to log out users in the group and kill processes who have that group as their effective, real or saved group.
- Change the entry in the group database. On Linux, run
groupmod -g NEWGID GROUPNAME. On other systems, use that system's administration tool, orvigrif available, or edit/etc/groupas applicable.
Change the group of all the files on your system that belong to the old group.
find / -gid OLDGID ! -type l -exec chgrp NEWGID {} ;
chgrp clears suid and sgid flags, restore those.
- If you have any archive that uses the old GID, rebuild it.
- If you have any configuration file or script that references the old GID, update it.
- Restart all processes that must use the new GID.
edited Jul 26 '16 at 13:32
oakymax
1034
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
edited Jul 26 '16 at 13:32
oakymax
1034
edited Jul 26 '16 at 13:32
oakymax
1034
edited Jul 26 '16 at 13:32
oakymax
1034
1034
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
answered Mar 9 '12 at 21:20
GillesGilles
538k12810881606
538k12810881606
2
Suggest usingchgrp -h ...instead ofchgrp .... Without-h, the target of any relevant symlink will have its group changed.
– Mark Plotnick
Jun 6 '14 at 21:44
3
groupmodtake's a name as the main argument for me...groupmod -g NEWGID GROUPNAME
– Matt
Nov 19 '14 at 15:41
add a comment |
2
Suggest usingchgrp -h ...instead ofchgrp .... Without-h, the target of any relevant symlink will have its group changed.
– Mark Plotnick
Jun 6 '14 at 21:44
3
groupmodtake's a name as the main argument for me...groupmod -g NEWGID GROUPNAME
– Matt
Nov 19 '14 at 15:41
2
2
Suggest using
chgrp -h ... instead of chgrp .... Without -h, the target of any relevant symlink will have its group changed.– Mark Plotnick
Jun 6 '14 at 21:44
Suggest using
chgrp -h ... instead of chgrp .... Without -h, the target of any relevant symlink will have its group changed.– Mark Plotnick
Jun 6 '14 at 21:44
3
3
groupmod take's a name as the main argument for me... groupmod -g NEWGID GROUPNAME– Matt
Nov 19 '14 at 15:41
groupmod take's a name as the main argument for me... groupmod -g NEWGID GROUPNAME– Matt
Nov 19 '14 at 15:41
add a comment |
The easiest way is to use groupmod -g <NEW_GID> <groupname>
Another way is to edit /etc/group directly. The third field in each column is the gid.
If the changed group is the main group of a user, /etc/passwd need to be adapted, too: usermod -g <NEW_GID> <username>.
edited Feb 9 at 0:38
mgarey
1034
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
1
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
add a comment |
The easiest way is to use groupmod -g <NEW_GID> <groupname>
Another way is to edit /etc/group directly. The third field in each column is the gid.
If the changed group is the main group of a user, /etc/passwd need to be adapted, too: usermod -g <NEW_GID> <username>.
edited Feb 9 at 0:38
mgarey
1034
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
1
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
add a comment |
The easiest way is to use groupmod -g <NEW_GID> <groupname>
Another way is to edit /etc/group directly. The third field in each column is the gid.
If the changed group is the main group of a user, /etc/passwd need to be adapted, too: usermod -g <NEW_GID> <username>.
edited Feb 9 at 0:38
mgarey
1034
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
The easiest way is to use groupmod -g <NEW_GID> <groupname>
Another way is to edit /etc/group directly. The third field in each column is the gid.
If the changed group is the main group of a user, /etc/passwd need to be adapted, too: usermod -g <NEW_GID> <username>.
edited Feb 9 at 0:38
mgarey
1034
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
edited Feb 9 at 0:38
mgarey
1034
edited Feb 9 at 0:38
mgarey
1034
edited Feb 9 at 0:38
mgarey
1034
1034
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
answered Mar 9 '12 at 13:09
jofeljofel
20.5k34980
20.5k34980
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
1
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
add a comment |
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
1
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
Will this also effect gid of files too ? I mean, gid of file and gid of group will change at same time ?
– mibzer
Mar 9 '12 at 13:12
1
1
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
No. This will change only the id of the group. Files/Directories keeps their (now unnamed) gid and need to be changed separately.
– jofel
Mar 9 '12 at 13:18
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
Ok thank you. So if I'd like to change their(files) gid to new gid, I have to execute another command. Is that right ? That would be better if there is way to change both gid of froup file and gid of related files at the same time.
– mibzer
Mar 9 '12 at 13:21
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
I've added the other command to my answer. It is not a problem if temporary a gid is used which is not in /etc/group. Every user in the group has to re-login to have the new gid.
– jofel
Mar 9 '12 at 13:25
add a comment |
find /path -group foo -print0 | xargs -0 chgrp bar
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
add a comment |
find /path -group foo -print0 | xargs -0 chgrp bar
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
add a comment |
find /path -group foo -print0 | xargs -0 chgrp bar
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
find /path -group foo -print0 | xargs -0 chgrp bar
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
answered Mar 9 '12 at 13:08
jiribjirib
1,002712
1,002712
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
add a comment |
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
as I said that will change the gid of files. But that is not what I mean. I want to change gid of a group not a file.
– mibzer
Mar 9 '12 at 13:11
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
ok, i was confused, then 'vi /etc/group' :)
– jirib
Mar 9 '12 at 13:13
add a comment |
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