Dear All, Fya. chmod Examples Let’s change some of the permissions as we discussed a couple of pages ago. Here’s the way our files are now: -rwxr-xr-x joe acctg archive.sh -rw-rw-r-- joe acctg orgchart.gif -rw-rw-r-- joe acctg personnel.txt -rw-r--r-- joe acctg publicity.html drwxrwxr-x joe acctg sales -rw-r----- joe acctg topsecret.inf -rwxr-xr-x joe acctg wordmatic First, let’s prevent outsiders from executing archive.sh Before: -rwxr-xr-x archive.sh Command: chmod o=r archive.sh After: -rwxr-xr-- archive.sh Take away all permissions for the group for topsecret.inf We do this by leaving the permissions part of the command empty. Before: -rw-r----- topsecret.inf Command: chmod g= topsecret.inf After: -rw------- topsecret.inf Open up publicity.html for reading and writing by anyone. Before: -rw-r--r-- publicity.html Command: chmod og=rw publicity.html After: -rw-rw-rw- publicity.html Regards, MOHAMMAD ADLI BIN MT TAJUDIN A8-2-7, DESA PANDAN APARTMENTS, OFF JALAN KG. PANDAN, 55100 KUALA LUMPUR, WEST MALAYSIA. H/p number: (017) 362 3661 Email: white.heron@xxxxxxxxx ________________________________ From: Sanjay Chakraborty <sanjaychakrab@xxxxxxxxx> To: General Red Hat Linux discussion list <redhat-list@xxxxxxxxxx> Sent: Monday, November 21, 2011 9:24 AM Subject: Re: Permission inheritance problem Sticky bit user for collaboration directory. and how it works in short: suppose you create a group dev and create a directory /limit and that is owned by dev group. Now a user joe he is in dev group as secondary group. He wants to modify a file in that directory but he will get 'permission deny' even the directory is owned by dev group and it is 770. Solution: apply stcky bit in that directory .. chmod 2770 /limit Now joe can read write and execute files in /limit directory. Does it helped ? On Fri, Nov 18, 2011 at 5:04 AM, kavya <kavya.g4@xxxxxxxxx> wrote: > so if i set a sticky bit it applies for owner also???? > > On Fri, Nov 18, 2011 at 2:05 PM, Cameron Simpson <cs@xxxxxxxxxx> wrote: > >> On 18Nov2011 11:07, kavya <kavya.g4@xxxxxxxxx> wrote: >> | Am working with file permission I have a query, >> | >> | usually on /mnt normal users will not be having permission to write so I >> | gave permission such as >> | #chmod 766 /mnt >> >> Surely you want 777 here? A directory with no 'x' permission is not >> searchable; 'r' only lets someone see the names of the things in the >> directory, 'x' (search) lets them access it. So with a directory you >> almost always want to grant 'x' if you grant any access. You don't need >> to give 'r', but it is usual. So 'r-x' and '--x' are sensible, 'r--' is >> usually not sensible. >> >> | #chmod go+t /mnt >> >> You just want "+t" here. There is no such thing as "sticky bit for >> group" or "sticky bit for other". There is only one bit. >> >> | I have enabled a sticky bit on /mnt for group and >> | others, as sticky bit is set, even the files and folders under /mnt can >> not >> | be deleted by others even if they have complete permissions and no sticky >> | bit is set for files under /mnt, >> >> Yes. >> >> | is there any option to allow users to >> | delete only particular files ????? >> >> No. The permissions on /mnt apply to the directory as a whole, >> not on a per-name basis. >> >> If you want per-name control the best you can do is make subdirectories >> and grant different accesses to those. Which is what home directories >> effectively are, if you would like a similar arrangement. >> >> Cheers, >> -- >> Cameron Simpson <cs@xxxxxxxxxx> DoD#743 >> http://www.cskk.ezoshosting.com/cs/ >> >> My opinions are borrowed from someone who no longer needs them. >> -- KatmanDu@xxxxxxxxxxxxxx >> >> -- >> redhat-list mailing list >> unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe >> https://www.redhat.com/mailman/listinfo/redhat-list >> > > > > -- > > Thanks and Regards > > Kavya.N(Koramangala) > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- Regards. Sanjay Chakraborty -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
