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script to recursively change permissions on file and dirs differently?

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Top Forums UNIX for Advanced & Expert Users script to recursively change permissions on file and dirs differently?
# 1  
Old 12-16-2009
script to recursively change permissions on file and dirs differently?
Hi there,

I need to change all files/dirs

1. all files with 744
2. all dirs with 755

is there a script for that ?

thanks,
thegunman
# 2  
Old 12-16-2009
Use find with the -type d option to find directories, and find again with the -type f option to find files. The -exec option of find can be used to run chmod.
# 3  
Old 12-16-2009
Presuming you mean all files with 644 (not 744) and all dirs 755, this should work:
Code:
chmod -R a=r,a+X,u+w /path/to/dir

Last edited by Scrutinizer; 12-16-2009 at 06:00 PM..
# 4  
Old 12-16-2009
Quote:
Originally Posted by Scrutinizer
Presuming you mean all files with 644 (not 744) and all dirs 755, this should work:
Code:
chmod -R a=rX,u+w /path/to/dir

Hi, Mr. S.

Aren't you slightly assuming that everything has the umask default?
# 5  
Old 12-16-2009
Hi Mr. Moderator (Smilie),

IMO this should work whatever your umask is set to. Note I did make a small modification, otherwise files that were already executable would keep their execute permissions.

S.
# 6  
Old 12-16-2009
Thank you Smilie

I don't doubt you - I never would, and my umask analysis (although wrong) looked that way because of the files in my directory at the time that didn't seem to change.

I did a wee test:

Code:
$ cd Test
$ touch a b c
$ ll
total 0
drwxr-xr-x  5 scott  staff  170 Dec 16 23:18 .
drwxr-xr-x  8 scott  staff  272 Dec 16 23:12 ..
-rw-r--r--  1 scott  staff    0 Dec 16 23:18 a
-rw-r--r--  1 scott  staff    0 Dec 16 23:18 b
-rw-r--r--  1 scott  staff    0 Dec 16 23:18 c
$ chmod 000 a
$ chmod 777 . c
$ ll
total 0
drwxrwxrwx  5 scott  staff  170 Dec 16 23:18 .
drwxr-xr-x  8 scott  staff  272 Dec 16 23:12 ..
----------  1 scott  staff    0 Dec 16 23:18 a
-rw-r--r--  1 scott  staff    0 Dec 16 23:18 b
-rwxrwxrwx  1 scott  staff    0 Dec 16 23:18 c
$ cd ..
$ chmod -R a=r,a+X,u+w Test
$ ll Test
drwxr-xr-x  5 scott  staff  170 Dec 16 23:18 .
drwxr-xr-x  8 scott  staff  272 Dec 16 23:12 ..
-rw-r--r--  1 scott  staff    0 Dec 16 23:18 a
-rw-r--r--  1 scott  staff    0 Dec 16 23:18 b
-rwxr-xr-x  1 scott  staff    0 Dec 16 23:18 c

Last edited by Scott; 12-16-2009 at 06:41 PM.. Reason: changed: umask analysis looked -> umask analysis (although wrong) looked
# 7  
Old 12-16-2009
This is strange, on my host I get different results:
Code:
$ ls -la chmodtest/
total 28
drwxr-xr-x   6 unixuser unixuser 4096 2009-12-16 23:37 .
drwxr-xr-x 237 unixuser unixuser 8192 2009-12-16 22:44 ..
d---------   2 unixuser unixuser 4096 2009-12-16 22:44 a
drwxr-xr-x   2 unixuser unixuser 4096 2009-12-16 22:44 b
drwxr-xr-x   3 unixuser unixuser 4096 2009-12-16 23:01 c
drwxr-xr-x   2 unixuser unixuser 4096 2009-12-16 22:44 d
----------   1 unixuser unixuser    0 2009-12-16 23:37 x
-rw-r--r--   1 unixuser unixuser    0 2009-12-16 23:37 y
-rwxrwxrwx   1 unixuser unixuser    0 2009-12-16 23:37 z
$ chmod -R a=r,a+X,u+w chmodtest/
$ ls -la chmodtest/
total 28
drwxr-xr-x   6 unixuser unixuser 4096 2009-12-16 23:37 .
drwxr-xr-x 237 unixuser unixuser 8192 2009-12-16 22:44 ..
drwxr-xr-x   2 unixuser unixuser 4096 2009-12-16 22:44 a
drwxr-xr-x   2 unixuser unixuser 4096 2009-12-16 22:44 b
drwxr-xr-x   3 unixuser unixuser 4096 2009-12-16 23:01 c
drwxr-xr-x   2 unixuser unixuser 4096 2009-12-16 22:44 d
-rw-r--r--   1 unixuser unixuser    0 2009-12-16 23:37 x
-rw-r--r--   1 unixuser unixuser    0 2009-12-16 23:37 y
-rw-r--r--   1 unixuser unixuser    0 2009-12-16 23:37 z

I would tend think my platform responds as expected. I am puzzled by your file c . Could it be your chmod has a bug?
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