change file owner to another owner

byran cheung · 12-17-2014, 02:02 AM

In a directory , there are many files , the file owner are different , could advise if I want to change a specific owner ( eg. peter ) to another owner ( eg. mary ) ( do not change all file owner , just change peter to mary ) , what can I do ? thanks

TenTenths · 12-17-2014, 02:14 AM

Seriously??

Do you actually bother to look at ANYTHING? Or is your first action to post on here??

Code:

man chown

OPTIONS
       Change  the  owner and/or group of each FILE to OWNER and/or GROUP.  With --reference, change the owner and group of each FILE to those
       of RFILE.

       -c, --changes
              like verbose but report only when a change is made

       --dereference
              affect the referent of each symbolic link, rather than the symbolic link itself (this is the default)

       -h, --no-dereference
              affect each symbolic link instead of any referenced file (useful only on systems that can change the ownership of a symlink)

       --from=CURRENT_OWNER:CURRENT_GROUP
              change the owner and/or group of each file only if its current owner and/or group match those specified  here.   Either  may  be
              omitted, in which case a match is not required for the omitted attribute.

It's the THIRD option described!

veerain · 12-17-2014, 02:22 AM

In Linux a file or a directory has following owners: "user", "group" and "other"

first to know owner do:

ls -l filename
or ls -l
to see all the files and directories in current directory.

Command to change:

user:
chown mary filename

user + group:
chown mary:mary filename

To change all files and directories with owner peter to mary:

for i in `ls -l -G | grep "peter" | awk '{print $8}'`; do
chown mary $i
done

To change owner of all the files and directories recursively:
chown -R mary *

dijetlo · 12-17-2014, 02:23 AM

Chown supports a "from X" -> "To Y" logical test.

chown --from=Peter Mary /path/to/target

metalaarif · 12-17-2014, 04:56 AM

Like others said, it should work right away.

Just to make it easy and lets assume you want to change owner within /home directory

$ cd /home
$ ls -lh [here you should see the owner and group]
$ chown mary:mary filename [remember we're changing but owner and group to mary]
$ ls -lh [confirm, if it worked or not]

check the screenshot just incase

XenaneX · 12-19-2014, 03:14 PM

Do you actually bother to look at ANYTHING? Or is your first action to post on here??

Do you actually bother to look at ANYTHING? Or is your first action to post on here??

Do you actually bother to look at ANYTHING? Or is your first action to post on here??