Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a textfile with name negin.txt in /home and did the following:

Right click → Properties → Permissions → Advanced Permissions → Add Entry → Named User user:wwwrun

Is it possible to do this over the shell?

I tried chown wwwrun /home/negin.txt but got no result. What is wrong here?


share|improve this question

migrated from Jul 27 '11 at 9:11

This question came from our site for professional and enthusiast programmers.

up vote 0 down vote accepted

The "Add named user" function uses POSIX ACLs, which can be modified through command-line like this:

setfacl -m u:wwwrun:rw negin.txt
share|improve this answer
I'm so thankful to you,with this I have write and read access? – Nickool Jul 27 '11 at 12:06
@Negin: You already have write and read access, since the file is already owned by the wwwrun user, and this u:wwwrun:rw ACL is pointless. – grawity Jul 27 '11 at 12:08
I appreciate you! you don't know how you helped me!!! thanks!!! thanks!!! very thanks! with your work I have this in advanced my goal was this I hope it will work in my install file too – Nickool Jul 27 '11 at 12:15
well yes but by just calling chown wwwrun I had problem in properties no changes were done but with this facl yes it works – Nickool Jul 27 '11 at 12:19
I tried it:D it works Nice and awesome:) I am so happy! – Nickool Jul 27 '11 at 13:16

Use chown :wwwrun /home/negin.txt to just set the group of the file.

share|improve this answer
Thanks I tried it tells me this in shell:chown: invalid group: `:wwwrun' – Negin Jul 27 '11 at 8:44
@Negin: because there is no such group? – phresnel Jul 27 '11 at 8:47
then why I can set it by going to properties? – Negin Jul 27 '11 at 8:48
@Negin: True. I realise there is a colon in :wwwrun (in the error message). Maybe you typed one to much? – phresnel Jul 27 '11 at 9:00
@phresnel: chown accepts user, user:group, and :group. – grawity Jul 27 '11 at 11:57

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .