File Permissions Between Users

Directory /media/data/torrents/ has permissions 775, user yzt, group transmission

yzt and debian-transmission are members of the group transmission.

transmission-daemon is run by debian-transmission, and the new files it downloads have permissions 644, owner debian-transmission, group transmission. This is a problem, because I can't later move the files as my user, yzt, and need to be switching to root to change the permissions/ownership to be able to do so.

Using sticky bit I could copy it to anywhere else, but I'm interested on actually moving the file, not just copying it. I could run transmission-daemon as yzt and problem solved, but I rather have that internet facing service running by a limited user, just in case some vulnerability is found on Transmission.

So my question is, how can I set that every new file created under /media/data/torrents/ has permissions 775 like its parent directory?

I would like to tar up some system logs with core files as a normal user through a script. However these core files are owned by root.

Of course I get "cannot read directory ...: Permission denied"

Is there a good way to grab these core files through a script? From searching around, I get that the best way is to modify the sudoers file, then run the script with sudo. Is this considered the safest and best way?

Thanks!

I have a directory structure and files I wish to change permissions on, but I don't want to change permissions on every file/subfolder along the way. Example: I want to chown all files in dir4 where my directory struture is:
/dir1/dir2/dir3/dir4/*
However, both dir3 and dir4 are owned by root:root so I need to change the ownership on those directories as well. But, if I do:
chown -R user:group /dir1/dir2/dir3/dir4/
...it will indeed make dir4 and it's files accessible, but it doesn't change dir3 - so folks still can't get to the files they need. I thought about doing:
chown -R user:group /dir1/dir2/dir3*
... but that will give users access not only to dir4 and it's files, but any other files under dir3 which I don't want.

My work around has been to do a chown on /dir1/dir2/dir3 and then a second chown on /dir1/dir2/dir3/dir4/, but I am thinking there has to be a way to do what I want in a single chown command - right?

Hey guys, I got samba working and I am able to access my files, however I am now trying to learn security with it. i am pretty much trying to allow certain groups access certain files. if you look at samba group you can see that I have @sambausers group to access sambagroup directory.

I have a user called sambatest01. the user can access "samba users only" but the user can access all of the other files as well. what is a correct set up on the other smb.conf to prevent users from accessing this? I cant seem to find a proper set up


[drivers]
path = /files/drivers
browseable = yes
read only = no
guest ok = no
guest only = no


[samba users only]
path = /files/sambagroup
browseable = yes
read only = no
guest ok = no
guest only = no
write list = @sambausers
valid users = @sambausers

Changing umask value for files and directories take effect after reload:
/etc/profile
/etc/bashrc
default permission for all users:
-rw-r--r--
above permission is edited to:
-rw-rw-r--
If a specific user in group having only read permission to a file/directory is created before reload,and Linux server reloads, that user gets rw permission to that file/directory. what is the alternative of securing:
/etc/profile
/etc/bashrc
apart from giving the two files access to root user only, and locking out all other users?

Hi guys,
.
For no apparent actions from me, hidden folders and files show
in my /user/home directory, they are as follows:-

folders:
.adobe .cache .config .cups .filezilla .gimp-2.8 .gnupg .gphoto .gstreamer-0.10 .icedtea .java .local .macromedia .mozilla .pki .thumbnails

Files:
.bash_history .bashrc .esd_auth .ICEauthority

In my / directory
File: ./readahead

Seeking help to verify the above folder and files are not from a harmful source or application?

If they do not post any thread to the system, how can I conceal
these folders and files, so that they don't show up any more in
my home and / directory ?

Many thanks.

Hello Folks.

I'm searching for a easy way to rename multiple files from CLI but didn't find any easy way for me so I'm reaching out to you guys for help.

This is what I want to do (from CLII or script). I want to move files with a sequence number on the name of the files (msg0000, msg0001, msg0002 and so on) to let's say msg0066, msg0067 and so on. Each of this file name has two other files (msg0000.wav, msg0000.WAV and msg0000.txt).

The idea is to move them from one directory to another and following a sequence in the file names, is there a way I can do this pain free?

Any help on this matter will be greatly appreciates and I'm talking about over 100 files I need to move following the sequence of the receiving directory.

Thanks!

Hello, I have an embedded linux device. I can connect to the device and I can upload or download files. No problem with this. But, at first connection, I want to connect to "/" directory instead of "/root". In the device file system, there are files ssh_config and sshd_config under /etc/ssh directory. I think I have to do something with these files but I don't know what.

I don't exactly know what mean "/root" and "/" directories. I think that the real root directory is "/" directory which is empty but when I connect with filezilla, the "/root" directory is the default so I had to go back to / directory everytime.

I am new to Bash scripting.

I have a main directory called Photos which has many subdirectories like People, Places and Things. Each of these subdirectories is populated by other subdirectories and lots of JPG photo images.

The digital cameras name the files in a way that is difficult to manage with web hosting.

I would like to go to each directory and subdirectory and rename the photos 1.jpg, 2.jpg, 3.jpg, etc. so that I can use a simple XML template to access them by specifying only a hosting directory.

I tried to use the following script:

#! /bin/bash

cd /home/paul/test

find . -name "*.jpg" -print0 | rename -v 's/.+/our $i; sprintf("%d.jpg", 1+$i++)/e' * -vn

exit 0

It successfully renames all of the files in all of the directories, but it does not restart the numbering for each new subdirectory. So first it goes through Photos and renames the three JPG files there 1.jpg, 2.jpg and 3. jpg, and then it opens the first subdirectory People and names the three JPG files there 4.jpg, 5.jpg and 6.jpg. Next it moves to the next subdirectory and continues sequential renaming until it is done.

I want it to restart sequential renaming with each new subdirectory, so that after renaming the three JPG files in Photos to 1.jpg, 2.jpg and 3.jpg, it moves to the first subdirectory and renames the JPG files there starting with 1.jpg again.

That way I use the links 1.jpg, 2.jpg, 3.jpg, etc in the XML template and just change the directory name to download the photos from the web.

Thanks for any help you can give me.

Hi,

I'm wondering if anyone can help me make a script that searches through a specific folder (in this case /tmp ) for files with a given permissions (755) and then delete all the other files with different permissions?

The correct permission should be, as mentioned 755, and those are the files that should be kept (not deleted).
All other files in this folder with different permissions should be deleted.

Thanks!