MX Linux Forum

Jakob77 wrote: Tue Sep 19, 2023 2:19 pm...
A Terminal command that can set permissions correctly for all files (picture- and video clips) in a folder and all its sub folders can maybe do what is needed.?..

sudo chown -R yourusername:yourusername /path/...

id

sudo chown -R 1000:1000 /path/...

Jakob77 wrote: Tue Sep 19, 2023 2:19 pm... changed so they all got permissions to run as programs ...

Jakob77 wrote: Tue Sep 19, 2023 2:19 pm
The last five files I downloaded did not have the wrong permission but after I did a copy to an external USB solid drive they were changed so they all got permissions to run as programs.

Any ideas about how that can happen or if it is common.?

A Terminal command that can set permissions correctly for all files (picture- and video clips) in a folder and all its sub folders can maybe do what is needed.?

Jakob77 wrote: Tue Sep 19, 2023 4:47 pm...
And it has some different sub folders ... Do you think this looks like a correct syntax ...

Code: Select all

sudo chmod -x -R ~/Music/*.*

chmod 644 *

Charlie Brown wrote: Tue Sep 19, 2023 5:52 pm Normally it's

644 for files ( rw-r--r-- )

and

755 for directories ( drwxr-xr-x )

mkdir test
cd test
ls

touch one.txt two.txt
chmod 0644 one.txt
chmod 0700 two.txt
find . -type f \! -perm 0644
./two.txt

Jakob77 wrote: Wed Sep 20, 2023 4:08 pm Can the reason for the problem be that the external SSD solid USB drive has been formatted by Windows 10 ?
I can't change the file permissions with Thunar on the USB drive, not even as root.
But after restoring on the target computer I can.

touch file
chmod 400 file
mv file /mnt/fatusb/
ls -al /mnt/fatusb/

Jakob77 wrote: Wed Sep 20, 2023 4:08 pm Thank you very much.
I have to look more into the code before I ask more about it.
If I mess things up and create new issues when I with Thunar remove permission to run as a program on all files in a folder, then I am afraid I have already messed up before I asked here.

Jakob77 wrote: Wed Sep 20, 2023 4:08 pm Can the reason for the problem be that the external SSD solid USB drive has been formatted by Windows 10 ?

Jakob77 wrote: Wed Sep 20, 2023 4:08 pm... been formatted by Windows 10 ...

Jakob77 wrote: Thu Sep 21, 2023 7:26 am... Do you use gpt and ext4 on all drives with no exceptions then.?..

Charlie Brown wrote: Tue Sep 19, 2023 5:52 pm

Jakob77 wrote: Tue Sep 19, 2023 4:47 pm...
And it has some different sub folders ... Do you think this looks like a correct syntax ...

Code: Select all

sudo chmod -x -R ~/Music/*.*

Yes, but no :D

If we do it in bulk, then, those which do not already have x (executable) may become problematic, new issues may occur.

Jakob77 wrote: Thu Sep 21, 2023 10:38 amA lot of things are scary today. I also have a USB backup disk I dare not look at. lol

I am very grateful for more code, I just don't understand it well enough to use it yet.

#!/bin/bash
find ./ -type d | while read DIR ; do echo chmod $1 "${DIR}" ; done
find ./ -type f | while read DIR ; do echo chmod $2 "${DIR}" ; done

Jakob77 wrote: Thu Sep 21, 2023 10:38 am A lot of things are scary today. I also have a USB backup disk I dare not look at. lol

I am very grateful for more code, I just don't understand it well enough to use it yet.

As a peasant in scripting I would like a little feedback on this simple idea for a script to calibrate a folder for instance ~/Music and its sub folders (all files are just music files) :

1) Somehow establish a copy of the whole tree with folders but without files.

2) Then use chmod with 0755 on all the folders in the tree with no files


3) And use chmod with 0644 on the other tree with all the files.


4) Afterwards copy/combine in a way so the folders in the empty tree overwrites the folders in the tree with all the files.

Could that be a simple and okay way to go.?

I don't have the code for 1 or 4 yet.

# This file contains custom mount options for udisks 2.x
# placed at /etc/udisks2/mount_options.conf
# Refer to http://storaged.org/doc/udisks2-api/latest/mount_options.html
[defaults]
vfat_defaults=uid=$UID,gid=$GID,dmask=0002,fmask=0113,shortname=mixed,utf8=1,showexec,flush
vfat_allow=uid=$UID,gid=$GID,flush,utf8,shortname,umask,dmask,fmask,codepage,iocharset,usefree,showexec
# common options for both the native kernel driver and exfat-fuse
exfat_defaults=uid=$UID,gid=$GID,dmask=0002,fmask=0113,iocharset=utf8,errors=remount-ro
exfat_allow=uid=$UID,gid=$GID,dmask,errors,fmask,iocharset,namecase,umask
# ntfs3, ntfs-3g and the legacy ntfs kernel driver options
ntfs_defaults=uid=$UID,gid=$GID,dmask=0002,fmask=0113,windows_names
ntfs_allow=uid=$UID,gid=$GID,umask,dmask,fmask,locale,norecover,ignore_case,windows_names,compression,nocompression,big_writes,nls,nohidden,sys_immutable,sparse,showmeta,prealloc

Jakob77 wrote: Thu Sep 21, 2023 4:03 pm thomasl

Thank you. I need to start my test computer soon.



fehlix

Thank you.
Yes, prevention is a much better strategy than cure.
I hope to be able to do the prevention just by choosing the best way to format:
viewtopic.php?t=77258
If more is needed I suppose you send it out in an automatic update.?

The script in quest is meant for repair when prevention has failed.

Jakob77 wrote: Thu Sep 21, 2023 10:38 am As a peasant in scripting I would like a little feedback on this simple idea for a script to calibrate a folder for instance ~/Music and its sub folders (all files are just music files) :

1) Somehow establish a copy of the whole tree with folders but without files.
2) Then use chmod with 0755 on all the folders in the tree with no files
3) And use chmod with 0644 on the other tree with all the files.
4) Afterwards copy/combine in a way so the folders in the empty tree overwrites the folders in the tree with all the files.

Could that be a simple and okay way to go.?

I don't have the code for 1 or 4 yet.

Jakob77 wrote: Fri Sep 22, 2023 4:07 am But I understand your way is to edit one file at a time and that is a huge work when it is a lot of files in different folders.

thomasl wrote: Thu Sep 21, 2023 8:29 am This is a script (called chmodr) I've used for a long time to change permissions for whole trees (as you've seen copying big directory trees from NTFS or FAT volumes can produce "wrong" permissions):

Code: Select all

#!/bin/bash
sudo find ./ -type d | while read DIR ; do sudo chmod $1 "${DIR}" ; done
sudo find ./ -type f | while read DIR ; do sudo chmod $2 "${DIR}" ; done

Start in the directory which you want to change, give the permissions for dirs and files and it'll do its job recursively:

Code: Select all

chmodr 755 644

DukeComposed wrote: Fri Sep 22, 2023 5:01 am

Jakob77 wrote: Fri Sep 22, 2023 4:07 am But I understand your way is to edit one file at a time and that is a huge work when it is a lot of files in different folders.

thomasl has explicitly told you what his script does and how it does it. Emphasis added:

thomasl wrote: Thu Sep 21, 2023 8:29 am This is a script (called chmodr) I've used for a long time to change permissions for whole trees (as you've seen copying big directory trees from NTFS or FAT volumes can produce "wrong" permissions):

Code: Select all

#!/bin/bash
sudo find ./ -type d | while read DIR ; do sudo chmod $1 "${DIR}" ; done
sudo find ./ -type f | while read DIR ; do sudo chmod $2 "${DIR}" ; done

Start in the directory which you want to change, give the permissions for dirs and files and it'll do its job recursively:

Code: Select all

chmodr 755 644

thomasl wrote: Thu Sep 21, 2023 8:29 am This is a script (called chmodr) I've used for a long time to change permissions for whole trees (as you've seen copying big directory trees from NTFS or FAT volumes can produce "wrong" permissions):

Code: Select all

#!/bin/bash
sudo find ./ -type d | while read DIR ; do sudo chmod $1 "${DIR}" ; done
sudo find ./ -type f | while read DIR ; do sudo chmod $2 "${DIR}" ; done

Start in the directory which you want to change, give the permissions for dirs and files and it'll do its job recursively:

Code: Select all

chmodr 755 644

Nowadays I'm doing two things WRT this. First I mount all NTFS or FAT volumes with the "right" permissions to start with. Secondly, I replaced the find command with a utility called fd (https://github.com/sharkdp/fd for details) which is faster, easier to use and at least for certain tasks more powerful. YMMV.

  
            if [ -d "$HOME/Music" ] ; then
find ~/Music -type d | while read DIR ; do chmod 755 "${DIR}" ; done

fi


            if [ -d "$HOME/Music" ] ; then

find ~/Music -type f | while read DIR ; do chmod 644 "${DIR}" ; done

fi

Jakob77 wrote: Fri Sep 22, 2023 9:56 pm I want to make a script that solves it in specific folders if they exist.

I wonder if there perhaps is something I can write instead of "~/Music" so it will work in all languages.?

find . -type d -exec chmod 0755 {} \;

#/bin/sh
find $1 -type d -exec chmod $2 {} \;
find $1 -type f -exec chmod $3 {} \;

I wonder if there perhaps is something I can write instead of "~/Music" so it will work in all languages.?

DukeComposed wrote: Fri Sep 22, 2023 10:12 pmThe only thing I'd point out about thomasl's script is that find does not need to pipe its output to a while loop. This works just the same:

Code: Select all

find . -type d -exec chmod 0755 {} \;

ls -lah

Jakob77 wrote: Thu Sep 21, 2023 10:58 am

Charlie Brown wrote: Tue Sep 19, 2023 5:52 pm

Jakob77 wrote: Tue Sep 19, 2023 4:47 pm...
And it has some different sub folders ... Do you think this looks like a correct syntax ...

Code: Select all

sudo chmod -x -R ~/Music/*.*

Yes, but no :D

If we do it in bulk, then, those which do not already have x (executable) may become problematic, new issues may occur.

I have to ask problematic how, what issues.?
Could it perhaps help to make them all +x first and then -x all.?
To me it looks like a big advantage if it is possible to reduce the edit to only the one privilege we want to change.

Jakob77 wrote: Sat Sep 23, 2023 5:54 pm Can 'find' find only the files with permission to run like programs and chmod them '-x' .?

DukeComposed wrote: Wed Sep 20, 2023 7:17 pm Extra credit: find supports an "-exec" argument that can used to run a command on the files/directories it returns. It also supports a "-perm" argument I mentioned earlier, and "\!" can be used to negate the permissions check, i.e., "find dir -type d \! -perm 0755" should give a list of all directories and subdirectories that do not have mode 0755.

mkdir test
cd test
touch one two three four
chmod 0700 one
chmod 0770 two
chmod 0777 three
find . -type f -perm /111
./three
./one
./two

Jakob77 wrote: Sun Sep 24, 2023 6:52 pm Is it unfair to name it a security hole in Thunderbird and expect the Thunderbird developers to fix it.?

Jakob77 wrote: Sun Sep 24, 2023 6:52 pm In a new .thunderbird I find approximately 50 files with five different permissions:

Is it unfair to name it a security hole in Thunderbird and expect the Thunderbird developers to fix it.?

ls -nd .thunderbird/
drwx------ 6 1000 1000 165 Sep 10 19:56 .thunderbird/

Eadwine Rose wrote: Mon Sep 25, 2023 4:59 am

Jakob77 wrote: Sun Sep 24, 2023 6:52 pm Is it unfair to name it a security hole in Thunderbird and expect the Thunderbird developers to fix it.?

Report to the TB people if there is a TB problem.

Jakob77 wrote: Thu Sep 28, 2023 8:11 am Except for ~/.thunderbird I am now almost done making the script that fixes permissions for all files and folders that has to come from my backup, when I do a new MX install.
It is all hard coded for my tree so it is not worth sharing, and permissions can be an endless discussion, but if someone wants to discuss a folder or two, I hope there is still room for it here.

FinalFox420 wrote: Mon Oct 02, 2023 3:44 pm

Jakob77 wrote: Thu Sep 28, 2023 8:11 am Except for ~/.thunderbird I am now almost done making the script that fixes permissions for all files and folders that has to come from my backup, when I do a new MX install.
It is all hard coded for my tree so it is not worth sharing, and permissions can be an endless discussion, but if someone wants to discuss a folder or two, I hope there is still room for it here.

I would not recommend hardcoding anything like this, you are bound to miss something or run into even stranger issues. Just make a fresh bkp with a properly formatted drive that supports file modes/permissions ex. ext4

setfacl

-x, --remove=acl remove entries from the ACL(s) of file(s)
-X, --remove-file=file read ACL entries to remove from file
-b, --remove-all remove all extended ACL entries
-k, --remove-default remove the default ACL

Jakob77 wrote: Thu Jan 04, 2024 11:59 am I finally managed to find a better way back into Mozilla.
So with a backpack loaded with all the good knowledge I got from this subject I have asked about .thunderbird permissions again.
If I am not the only Thunderbird user in the whole world who ever messed up the .thunderbird permissions with a wrong backup disk and want to fix it we can hope the final solution comes from them:
https://support.mozilla.org/en-US/questions/1435505

Jakob77 wrote: Fri Jan 05, 2024 5:22 am CharlesV

This subject is about a lot more than Thunderbird. Thunderbird is just the last issue that has not been clarified to the bone.

Back in the good old Ubuntu days the users were told to use Windows to format USB-drives for backup.
Changing permissions was also something we were told to be very careful with.
Ubuntu software could not do the format well enough.
And about two years ago I had a USB-drive that Mint could not format but Windows did it.
For many years format has been the only good reason for me to keep a Windows computer in my house.
In MX it looks like that eventually can change because the format tool is better.
You can always blame the user for not knowing enough so this is not an excuse, just an explanation.

You have claimed before that Thunderbird is stronger than we might think, and I am tempted to agree.
After all the mess it still works, and a few days ago I searched for a mail from 2019 and found it.
However it is still a mess, and I think it needs clarification, if not for functionality then for safety.

Thunderbird seems so close to be compatible with Linux backup to ext4, fat32 AND ntfs.
What I hope this will bring is that the Thunderbird developers build in a code that automatically will fix the rest.
With the great codes provided for this subject it looks like a task it should be possible to overcome.
Can't you imagine how much good it will do for Thunderbird to be able to make that official instead of leaving the users to feel unsafe.?
I can.! :-)

Thunderbird can see that some permissions for files and folders are changed.
If you want the permissions changed back to normal private default, Thunderbird can do it for you.
Do you want that.?

Yes or No

find ~/.thunderbird -type d | while read DIR ; do chmod 700 "${DIR}" ; done

find ~/.thunderbird -type f | while read DIR ; do chmod 600 "${DIR}" ; done

I understand the Thunderbird developers has to be careful with what they do for a skilled user like you.
But if they want to supply my demand they also have to think about how they up to some degree can make Thunderbird foolproof.

CharlesV wrote: Fri Jan 05, 2024 1:20 pm Which is precisely as it should be!

The fact that YOU dont understand it does not mean that it is wrong - it means ... you dont understand it!

if you copy files to a new location unless you copy the files permissions with that copy, those files are deemed to be NEW in the folder you copy them to, and are placed under the existing folders permissions. This IS how it is done! ( linux 101 )