Thanks. It's kind of short. However, it seems clear from this link (http://www.tldp.org/LDP/intro-linux/html/sect_03_04.html) that a user can use newgrp command successfully only if the new group (s)he would like to switch to is already a secondary group for the user. Regards, Vidol ----- Original Message ----- From: "Richard E Miles" <r.godzilla@xxxxxxxxxxx> To: "For users of Fedora Core releases" <fedora-list@xxxxxxxxxx> Sent: Thursday, August 25, 2005 8:25 AM Subject: Re: The newgrp command > On Thu, 25 Aug 2005 08:24:05 +0700 > Vidol Loeung <fedora.kh@xxxxxxxx> wrote: > > > Thanks Richard. When I as a user used newgrp to switch myself to a new > > group, I of course gave the password of that group, which was assigned by > > the gpasswd comamnd as you mentioned. I also agree that, this command is > > rarely used and I think, it only makes sense when a user would like > > files/directories (s)he creates to belong to a particular group. Having the > > user as a member in each group is fine. > > > > My question was out of curiosity as I was trying to experiment the newgrp > > command and found that it did not seem to work the way it should as its > > manual and documentations stated that the command is used to switch a user > > to a new group and requires the group password. > > > > Let me give a scenario here: > > - I logged in as user 'joe'. > > - Then, I typed this command ('joe' is not a member of group 'users'): > > $ newgrp users > > Password: > > newgrp: Permission denied > > > > I've wondering what the group passwd command is used for and found that the > > newgrp command is the one that needs the group passwd. Now, when I tried it > > as above it did not work. > > > > Would someone kindly clarify a bit more on the use of the newgrp command? > > > > Regards, > > Vidol > > > > ----- Original Message ----- > > From: <rengland@xxxxxxxxxx> > > To: "For users of Fedora Core releases" <fedora-list@xxxxxxxxxx> > > Sent: Wednesday, August 24, 2005 3:07 AM > > Subject: Re: The newgrp command > > > > > > > > Thank you Ben and Richard for yoru replies. > > > > > > > > Well, Ben you are right, root can switch to any group without having to > > > > give > > > > a password. I also discovered the same as what Richard said. However, in > > > > case an ordinary user is not a member of a particular group and she/he > > > > tries > > > > to use the newgrp command to switch to that group with correct password, > > > > it > > > > always gave the error message: Permission denied. > > > > > > > > Read a lot of docs on it but still could not help. > > > > > > > > Regards, > > > > Vidol > > > > > > > > > > > > ----- Original Message ----- > > > > From: "Richard England" <rengland@xxxxxxxxxx> > > > > To: "For users of Fedora Core releases" <fedora-list@xxxxxxxxxx> > > > > Sent: Tuesday, August 23, 2005 1:06 PM > > > > Subject: Re: The newgrp command > > > > > > > > > > > >> > > > >> Ben Stringer wrote: > > > >> > > > >> >On Tue, 2005-08-23 at 12:17 +0700, Vidol Loeung wrote: > > > >> > > > > >> > > > > >> >>Dear All: > > > >> >> > > > >> >>The newgrp command seems simple to use. However, I could not use it > > or > > > >> I > > > > did > > > >> >>not know how to use it. > > > >> >> > > > >> >>Could someone please explain me what teh problem is? I was logged in > > > >> as > > > > an > > > >> >>ordinary user and type the command: > > > >> >>$ newgrp users > > > >> >>It asked me for the group password and I entered it but it said: > > > > "Permission > > > >> >>denied". > > > >> >> > > > >> >> > > > >> > > > > >> >Hi Vidol, > > > >> > > > > >> >You will need to be the root user to run this command. > > > >> > > > > >> >Try this: > > > >> > > > > >> >$ su - > > > >> ># newgrp users > > > >> > > > > >> >Cheers, Ben > > > >> > > > > >> > > > > >> > > > > >> >>Regards, > > > >> >>Vidol > > > >> >> > > > >> >> > > > >> >> > > > >> I don't believe that is strictly true. If the userid is included in > > > >> several groups, all the user has to do is type in "newgrp > > <newgrpname>". > > > >> However, if the user is NOT member of the group, then they are prompted > > > >> for the group password. > > > >> > > > >> Use the command "id" to find out what your primary group currently is, > > > >> and the command "groups" to find out what groups your userid is > > > >> currently a member of. > > > >> > > > >> --R > > > >> > > > >> -- > > > >> fedora-list mailing list > > > >> fedora-list@xxxxxxxxxx > > > >> To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > > > > > > > -- > > > > fedora-list mailing list > > > > fedora-list@xxxxxxxxxx > > > > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > > > > > > > > > > > > > > > > I'm no expert on this but what password were you entering for the group? > > > Do you know what, if any password was assigned to the group? It may or > > > may not be the same as you login passwd. > > > > > > You can modify the group password using gpasswd (see the man page). I > > > did not investigate to find out how the original (creation time) password > > > is set. > > > > > > I've only used a small number of groups (3-4) on my personal machine and > > > I've added my userid to each so I've never had to use newgrp there. At > > > work I don't have permissions to modify anything at this level so I've not > > > worked with it. > > > > > see man newgrp. > > > -- > Richard Miles > Federal Way WA. USA > registered linux user 46097 > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
