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Old 10-31-2004, 06:48 PM   #1
Registered: Oct 2004
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How to change permissions?

Please help me, I'm just trying to delete some things and drop and drag some others and it won't let me saying "I don't have permission". I can right click on the folder then click properties then change some stuff that way but I need to do it for each file and I'm sure there's an easier way so please help me. I'm using Ubuntu BTW.

Thanks a lot,
Old 10-31-2004, 07:21 PM   #2
Registered: Dec 2002
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this should help explain permissions:

you can easily set permissions on multiple files or dirs via the terminal using the chmod command explained above....
Old 10-31-2004, 07:29 PM   #3
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Location: Zurich, Switzerland
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1. Open a prompt.
2. Change to the correct directory where you want to change the permissions.
3. Change the permissions.

Assuming the step 3 is the hard one.
eg. to give owner of the file named foo a [r]ead,[w]rite and/or e[x]ecute permission, you can use command
chmod u+rwx foo
To do the same thing for every file in the directory,
you can write:
chmod u+rwx *
To change permissions for the group or others (the ones not being the owner of the file or belonging to the group in question) instead, replace the u with g or o respectively.

To change the owner of the file, you can use the command chown to do it.

For more details see
"man chmod"
"man chown"
and for example tutorial about unix permissions.
Old 10-31-2004, 07:30 PM   #4
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The tutorial in post #2 looks better than mine, read it.
Old 11-02-2004, 10:10 AM   #5
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And if you use a file manager utility like Midnight Commander, you can use that to change ownerships and permissions, from its menu of commands. But it's quicker and often easier to do it from the command line once you get used to it.

It took me a long while to learn that a lot of mysterious problems I was having came from having ownership and/or permission set wrong. Now I check those out first when something doesn't want to work!


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