Granting access to specific user on a 700 file Post: 303043081

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Top Forums UNIX for Advanced & Expert Users Granting access to specific user on a 700 file Post 303043081 by vbe on Friday 17th of January 2020 04:22:55 PM

01-17-2020

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Quote:

Is it because, the directory is having 700 ?

Yes...

Quote:

Is there a way to accomplish the need?

Not sure I understood all requirement, but I will give an example I do for a dept here:
Statisticians in groupA should be able to execute and modify files of statisticians in GroupB but they are should not see what is in DirB of groupB except the files they know of
I use a common directory DirC, put the executables and files in that directory with 664perms for the data files group owner GroupB, 755 for the executables and and 711 perms for DirC with a statistician of GroupB as owner and responsible for content of this directory...
The use of 711 on directory makes its content unreadable except for the owner, but if you know what is there e.g. a. executable like a script and you have the right to execute or modify, you can do so, but you have no ways to see what else is in that directory...
(just in case I was not clear, The GID of the files in this directory are set to GroupB)

Last edited by vbe; 01-17-2020 at 05:45 PM..

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LEARN ABOUT ULTRIX

mkproto

mkproto(8) Unsupported mkproto(8)

Name
mkproto - construct a prototype file system

Syntax
/etc/mkproto special proto

Description
The command is used to bootstrap a new file system. First a new file system is created using The command is then used to copy files from
the old file system into the new file system according to the directions found in the prototype file proto. The prototype file contains
tokens separated by spaces or new lines. The first tokens comprise the specification for the root directory. File specifications consist
of tokens giving the mode, the user-id, the group id, and the initial contents of the file. The syntax of the contents field depends on
the mode.

The mode token for a file is a 6 character string. The first character specifies the type of the file. (The characters -bcd specify regu-
lar, block special, character special and directory files respectively.) The second character of the type is either u or - to specify set-
user-id mode or not. The third is g or - for the set-group-id mode. The rest of the mode is a three digit octal number giving the owner,
group, and other read, write, execute permissions. See

Two decimal number tokens come after the mode; they specify the user and group ID's of the owner of the file.

If the file is a regular file, the next token is a pathname whence the contents and size are copied.

If the file is a block or character special file, two decimal number tokens follow which give the major and minor device numbers.

If the file is a directory, makes the entries . and .. and then reads a list of names and (recursively) file specifications for the
entries in the directory. The scan is terminated with the token $.

A sample prototype specification follows:

d--777 3 1
usr d--777 3 1
sh ---755 3 1 /bin/sh
ken d--755 6 1
$
b0 b--644 3 1 0 0
c0 c--644 3 1 0 0
$
$

Restrictions
You can only run on virgin file systems. It should be possible to copy files into existent file systems.

See Also
dir(5), fs(5), fsck(8), newfs(8)

mkproto(8)