[SOLVED] Read only files

trintukaz · 10-11-2011, 08:38 AM

Hello. I want to ask which command finds Read Only files I found information only about writable files.

tshikose · 10-11-2011, 09:24 AM

Hi,

Generally the find command is your friend. So man find to be familiarized.
That said, to find all the read-only (in reality readable and not writable) files on a folder launch
find /path/to/folder -perm 444 -a ! -perm 222

Regards,

Tshimanga

tronayne · 10-11-2011, 09:41 AM

You may want to use the find utility with the -perm option; e.g.,

Code:

find / -type f -perm 444

The 444 means read only for owner, group and public.

You use the octal values that you would use with chmod; e.g.,

Code:

chmod 755 file                   (rwx for owner, rx for group, rx for public)
chmod 644 file                   (rw  for owner, r  for group, r  for public)

and so on.

Hope this helps some.

grail · 10-11-2011, 10:16 AM

You may need to think about exactly what you want a little more, ie what if the file is readable and executable but not writable (something like 544 for perms).

trintukaz · 10-11-2011, 12:22 PM

Quote:

find / -type f -perm 444

This command shows files which have permission read only for user,group or others but i need find files which have permission read only by all of them.

bgeddy · 10-11-2011, 02:39 PM

How about this:-

Code:

find / -type f -perm /444 -a -not -perm /222

The / in front of the perm means find stuff with any of the bits set so this finds type file with any read bit set and no write bits set. So file that are readable by someone and writeable by no one.

trintukaz · 10-11-2011, 11:34 PM

Thank you.