Write to all users linux

How to Give Read, Write Permissions to a Folder in Linux to All Users

Permission is very important for security. That’s why whenever an app or project is placed on the server. So to protect it, different permissions are given to different folders, subfolders, and files. But when a developer works, he can work it only by changing the permissions. In this tutorial, you will learn step by step how to give read and write permission to folders in Linux for all users.

Before you get started, it’s essential to understand Linux’s permission model. In Linux, permissions are divided into three categories: user, group, and others. The user refers to the owner of the file or folder, while the group represents a collection of users. The others category covers all other users who do not fall under the user or group categories.

To give read and write permissions to a folder in Linux, you will use the chmod command. Chmod stands for “change mode,” and it is used to modify permissions on files and folders.

How to Give Read and Write Permissions to a Folder in Linux to All Users

• Step 1: Open the terminal
• Step 2: Navigate to the folder
• Step 3: Use the chmod command to give read and write permissions
• Step 4: Verify the permissions

Step 1: Open the terminal

First, you need to open the terminal on your Linux system. You can do this by pressing Ctrl+Alt+T on your keyboard or by searching for “terminal” in the applications menu.

Step 2: Navigate to the folder

Next, execute the following command on the terminal to navigate to the folder you want to modify permissions for using the cd command. For example, if the folder is located in your home directory, you can navigate to it by typing:

Replace “foldername” with the actual name of the folder you want to modify.

Step 3: Use the chmod command to give read and write permissions

Once you are in the folder, execute the chmod command to give read and write permissions to all users. Type the following command on the terminal:

The “a” in the command stands for “all,” which means that the permissions will be applied to all users on the system. The “+rw” part of the command indicates that you want to add read and write permissions to the folder.

Similarly, you can use the following command to give read and write permission to all users:

Step 4: Verify the permissions

Finally, you can verify that the permissions have been changed by using the ls command to list the contents of the folder. To do this, type:

The output of the command will show the permissions for the folder. You should see something like this:

drwxrwxrwx 1 user group 4096 Apr 22 2023 foldername

The “rwx” part of the output indicates that the folder has read, write, and execute permissions for all users.

Here are some frequently asked questions (FAQs) about giving read and write permissions to a folder in Linux to all users:

Q: What does the “a” in the chmod command stand for?

A: The “a” stands for “all,” which means that the permissions will be applied to all users on the system.

Q: How can I give read and write permissions to a specific user instead of all users?

A: Yes, you can use the username instead of “a” in the chmod command. For example, to give read and write permissions to the user “Johndoe,” you would use the command “chmod u+rw foldername”.

Q: How can I give read and write permissions to all users on a specific file instead of a folder?

A: Yes, you can use the chmod command with the “a+rw” options to give read and write permissions to all users on a specific file. For example, to give read and write permissions to a file named “filename,” you would use the command “chmod a+rw filename”.

Q: Can I use a graphical interface to modify permissions on a folder or file in Linux?

A: Yes, most Linux distributions come with a graphical file manager that allows you to modify permissions on files and folders. However, using the command line interface with chmod is more efficient for making changes to multiple files or folders at once.

Conclusion

In conclusion, giving read and write permissions to a folder in Linux to all users is a straightforward process. You need to use the chmod command with the “a+rw” options to apply the changes to all users on the system. Remember to be careful when modifying permissions, as incorrect settings can compromise the security of your system.

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Shell give all users access to directory linux

If you also want (you probably do) that new files created inside the directory by one of the users are automaticaly writable by others in the group, then see here. However not some technical users like , unless there’s a valid reason) is good to have as a member, also to have a neutral owner of that shared folder setGid is very important, such that new files do become common group membership, thus , not Solution 1: You should set necessary directory permissions.

Give write-access of a folder to all users in linux?

give write-access of a folder to all users in linux?

Linux permissions: files, directories, users and groups

We walk through file and directory modes and use chmod to change modes with a link to octal
Duration: 4:58

Give write permissions to multiple users on a folder in Ubuntu

There are two ways to do this: set the directory to «world» writable or create a new group for the two users and make the directory writeable to that group.

Obviously making it world writeable is a Bad Thing, so the second option is preferable.

Users in Linux can belong to more than one group. In this case you want to create a brand new group, let’s call it tomandruser :

sudo groupadd tomandruser 

Now that the group exists, add the two users to it:

sudo usermod -a -G tomandruser tomcat6 sudo usermod -a -G tomandruser ruser 

Now all that’s left is to set the permissions on the directory:

sudo chgrp -R tomandruser /path/to/the/directory sudo chmod -R 770 /path/to/the/directory 

Now only members of the tomandruser group can read, write, or execute anything within the directory. Note the -R argument to the chmod and chgrp commands: this tells them to recurse into every sub directory of the target directory and modify every file and directory it finds.

You may also want to change 770 to something like 774 if you want others to be able to read the files, 775 if you want others to read and execute the files, etc. Group assignment changes won’t take effect until the users log out and back in.

If you also want (you probably do) that new files created inside the directory by one of the users are automaticaly writable by others in the group, then see here.

Following script shows an example to give r (read) / w (write) / x (execute) permission to the given folder path /path/to/the/directory for USER1 and USER2 . If you want to give only write access please replace rwx with w .

#!/bin/bash # Block others and people in the same group to do `r/w/x` on the give folder: sudo chmod 700 /path/to/the/directory # Give read/write/execute access to USER1 on give folder: sudo setfacl -R -m user:USER1:rwx /path/to/the/directory # Give read/write/execute access to USER2 on give folder: sudo setfacl -R -m user:USER2:rwx /path/to/the/directory 

Opinionated anwer:

• I like to put my shared folder in a central place. Not in someone else’s homefolder, but /srv/common or even (for ruthlessly short paths. ) /repo or similar.
• define a new group (typically for all local users, that you want to join in. However not some technical users like wwwuser , unless there’s a valid reason)
• root is good to have as a member, also to have a neutral owner of that shared folder
• setGid is very important, such that new files do become common group membership, thus frank:common , not frank:frank

 sudo groupadd -f common usermod -aG common root usermod -aG common frank usermod -aG common mike # sort of hack for instant group refresh w/o logout # superuser.com/a/345051 su - frank # sanity test1: cat etc/group | grep common common:x:1008:root,frank,mike # sanity test2: groups frank adm cdrom . common sudo chown root:common /repo # (if you have shareable stuff setting somewhere else, # copy it to here now) # no right to the world, the right rights to user and group chmod -R ug+rwXs,o-rwx $dest # why uppercase X ? → unix.stackexchange.com/a/416885 # why s ? → superuser.com/a/277785 # as there is no such thing as an uppercase S (directories only) # settings the s attribute on preexisting content would have to happen # like so: # find /repo -type d -exec chmod g+s <> \\\; 

Shell Script to List Files that have Read, Write and Execute, We have to check every file in the current directory and display the name that has Read, Write and Execute permission, · To traverse through all

Give read-only access to specific folders?

You should set necessary directory permissions. For directories they are:

• read : permitted to view files and sub-directories in that directory
• write : permitted to create files and sub-directories in that directory
• execute : permitted to enter into a directory.

For files the situation is similar, it’s quite obvious, so you can handle it on your own.

Numeric these permissions:

To edit permissions use chmod . Usage: chmod xyz

jack and jack’s group will have read+write access to /home/jack and all it’s sub-directories. The rest will have only read access. -R option here used to recursively set permissions.

will give jack full access to /home/jack/video directory. See also: chown , chgrp for changing owner and owning group.

i also don’t read necessary to set up chroots . to prevent from go up parent directories , assign a strict permission .

$ mkdir --parent 1/2/3 $ ls 1 2 $ chmod 100 1 $ ls 1 ls: cannot open directory 1: Permission denied $ ls 1/2 3 

if we want to grant a user acces to /home/1 but confine the user not to see what are other materials in /home we make /home owned by root hand have permission 111 . thus the user never know if /home/2 ever exist .

How to change permissions from root user to all users?, If I understand you correctly, fire up a terminal, navigate to one level above that directory, change to root and issue the command:

How can I share a directory with an another user?

Taken from this excellent post on Ubuntu Forums by Morbius1.

The classic Linux way of doing this sort of thing goes something like this:

sudo chown :newgroup /home/Shared 

sudo adduser user1 newgroup 

Now you have some decisions to make about what you want those users to be able to do:

[a] All group users can add to and delete from the folder and can read and but not write to each others files:

sudo chmod 0770 /home/Shared 

sudo chmod 1770 /home/Shared 

sudo chmod 2770 /home/Shared 

sudo chmod 3770 /home/Shared 

A 1 in the first position of the chmod command is the sticky bit which prevents deletion of a file to anyone other than the owner.

A 2 in the first position of the chmod command is the setgid bit which forces all new or copied files to have the group of that folder.

A 3 in the first position of the chmod command is the combination of the sticky ( 1 ) & setgid ( +2 ) bits.

There is one caveat to all this as far as the setgid bit is concerned. All new files created in and any files copied to that folder will in fact inherit the group of the folder. But not files moved to that folder. Moved files retain the ownership from wherever they were moved from. One way to get past this problem is to use bindfs.

Finally if you want others outside the group to be able to see the files but not change them change the final 0 in the chmod command to a 5 eg:

sudo chmod 0775 /home/Shared 

Linux how to set permissions on directory Code Example, debian give write permission · how to give permission to a user in linux on a folder · how to set execute permission in linux.

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