chmod changes the permissions of each given file according to mode, where mode describes the permissions to modify.

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199 views

Understanding chmod Symbolic Notation and use of Octal

Many new users make mistakes (or have misunderstanding) while applying chmod on files or directories, because of a lack of informative knowledge of: Symbolic notation for ugo and rwx Use of octal ...
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63 views

Cannot Write to www and update wordpress at same time

I have LAMP installed on my Ubuntu 14.04 server and am using apache as a web server. I am going to be using the web server for Wordpress primarily. The problem I am running into is that I cannot ...
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83 views

chmod+x is not working at ubuntu on AWS EC2

I am trying to run a hadoop word count code in python at the Amazon EC2 environment. I am using Ubuntu 14.04. I run the following command chmod a+x test.sh and expect to run it test.sh as a command. ...
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364 views

Cannot chown or chmod using sudo anymore

I was trying to make an adjustment to the /etc/sudoers file, and I accidentally corrupted it. I restored it via the grub and using the Ubuntu 14.04 default. But now it seems I can change ownership ...
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2answers
164 views

Can I write a file with only read permission?

I just set a read only permission to a file using chmod 400 filename.txt after that I open the file via vi editor and edit and try to save using :w then is says E45: 'readonly' option is set (add ! to ...
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2answers
1k views

chmod is not working

I am unable to change the privileges of the directory or file which is not in desktop using chmod. while it is working properly for the directory and folders of desktop. am using the command chmod ...
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1answer
980 views

Set permissions for future folders and files

I have some trouble managing permits in a folder and relative sub folders. I am working on ubuntu 14.04. I have a software which periodically creates new folders and files inside of a main folder. ...
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2answers
299 views

How to prevent directory from being deleted by user?

Suppose a directory dir1 is created by sudo on Desktop. sudo mkdir dir1 Then I applied chown and chmod as following: sudo chown root:root dir1 sudo chmod go-rwx dir1 Now dir1 is only accessible ...
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1answer
36 views

Script for changing access rights of multiple files and directories?

I want to create a script that changes the access rights for all files and folders in a specific directory tree. All users should have read and write access for all files and directories. Does anyone ...
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1answer
26 views

Access to different directories

I have recently moved to Ubuntu 12.04 and noticed that in some directories I can't even create a directory or file (e.g:/var/lib). I know about the command chmod, but is it appropriate to use it in ...
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2answers
38 views

How to make a script that will make another script in the same folder executable?

How to make a script that will make another script in the same folder executable? I don't want to worry about path since it will be in the same directory. So it should be something like(i'm trying to ...
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0answers
29 views

Problems with file permissions in ubuntu 14.0 [duplicate]

Good afternoon to all Here I have a problem with permissions, use ubuntu 14.0 configured with samba. The details are in the following example: There is a folder called "isolated" contains folders ...
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1answer
146 views

Problem with access to mounted drive

I can not make my newly mounted hdd work properly. First and foremost, I can not access it to read and write any file or folder even after changing the privileges to +775 and even +777 (though I can ...
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2answers
263 views

Directory with readable and unreadable files

I am root. I want to make a directory, SuperSensitiveDirectory, private so that only root can even read the files inside it and its sub-directories. There are passwords in these files, and they should ...
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1answer
138 views

Give permission to a specific group without owning it

I have created a group named newgroup. But I didn't add my user to this group. Now I want give the write permission to this group for a specific file named sample.txt. I can use chmod if I am the ...
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5answers
987 views

Difference between +x and ./<script> and sh ./<script>

Are there any actual differences between running a script with [sudo] sh ./<script>.run instead of [sudo] chmod +x ./<script>.run [sudo] ./<script>.run
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0answers
37 views

Is chmod out-of-place? [closed]

I try to chmod some files and I get the error "disk quota exceeded": It's true that I don't have that much space remaining in the filesystem where I use chmod, ...
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2answers
79 views

Chmod ubuntu desktop fail

I accidentally did chmod 667 on /home/user/Desktop/ and now it is behaving strangely. How can I reverse the damage I have done?
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1answer
4k views

sudo: unable to stat /etc/sudoers.d/README: No such file or directory

Whenever i use sudo command i get this message: sudo: unable to stat /etc/sudoers.d/README: No such file or directory i ran into this trouble when i was strugling with chmod using which i changed ...
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2answers
281 views

“cannot open file userpref.blend@ for writing: Permission denied” in blender

I'm using blender 2.69, installed via software centre, and when I save my user preference through File -> User Preferences and click on "Save User Settings" there is a message "cannot open file ...
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1answer
289 views

Joomla Files/Folders Permissions in Ubuntu

The recommended way of setting files and folders permissions in the joomla root directory is the following (from the help.ubuntu website) cd /var/www/joomla/ sudo find . -type f -exec chmod 644 {} \; ...
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1answer
1k views

Unable to change permissions for apache file 000-default.conf

I am trying to change the permissions for the apache file /etc/apache2/sites-enabled/000-default.conf when I input the command sudo chmod 755 000-default.conf the file still stays to ...
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0answers
51 views

chrome does not load

hey there i followed the instructions on this page to change permission of all files in a directory in /var ...
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2answers
2k views

automatically set sudo chmod 777

is there a way to automatially set sudo chmod 777 for all the files, folder and subfolders in a directory. The sudo chmod 777 should automatically be set when a folder or a file is created in the ...
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0answers
646 views

User has no permissions in sftp

I installed LAMP in my Digital Ocean droplet. I have successfully logged in to SFTP. However, when I try to do anything in my /var/www/html/ folder it says permission denied. It may be worth ...
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1answer
162 views

How can I set different permissions for files and folders separately?

I want to apply 644 permissions only for all files in current directory, and 755 permissions only for subdirectories in current directory with chmod
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1answer
62 views

Repair filesystem permission

I accidentally executed sudo chmod -R 777 / I was actually trying to change a specific folder permission recursively, btw i did stop the command before it changed everything. But now, i can't ...
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53 views

Django chmod using wrong user:group

I have installed django and some other services to start up one front-end community forum. However i've managed to do it everythings run but i have problem with CHMOD permissions. My nginx server ...
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1answer
79 views

Write permissions not allowed on my USB key

I can read/write my USB key normally on Windows XP. On Ubuntu 12.04 I can only read it. I tried sudo to chmod with 777 my USB key but Ubuntu does not allow me that. Why this problem happens ? How ...
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1answer
723 views

Can't access home folder

While installing Matlab, I mistakenly typed sudo chmod +x ./java in the home folder. And I got i/o error that you are not allowed to access the home folder. Suddenly everything in my home folder ...
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0answers
10 views

How to automate CHMOD [duplicate]

How do I make the default value when upload a file via FTP for it to be 777. Like a have a ubuntu server, and one of the users has an application that created files in his folder, how do i make the ...
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2answers
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Why don't I have a password for “su”? Problems with “sudo”

I have installed Ubuntu using the GUI, giving myself a password and everything. I do not intricately remember the process. However, what worries me is that I don't know the following password: $ su ...
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2answers
1k views

chmod directories and files in one command?

I have a directory "project" that contains a set of subdirectories and files. I want to give 777 permission to the directories and files from my 666 in the same directory with chmod command in my ...
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1answer
70 views

How to submit a feature request for chmod linux command

Note: I believe this question doesn't fit the SO guidelines for question types, but if you can, please move it to appropriate section of the SE network or please tell me where it would be appropriate ...
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1answer
484 views

Default group permissions for /var folder

I accidentally ran sudo chmod -R g+rw /var instead of sudo chmod -R g+rw /var/www. This means that for every file, the group owner now has explicit read-write access. I have already seen an example ...
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1answer
46 views

Chmod crash version 13.10

I was watching a command line reference tutorial and testing out two commands, CHMOD and CHOWN. I ended up changing my root folder's permissions. What should I do? Version 13.10.
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1answer
250 views

How to let a user execute a script owned by root? Setuid doesn't seem to work anymore

I have some bash scripts that I use with the user 'root' to manage iptable rules. The problem is that I want these things at the same time: The script must be owned by root Permissions must be 700 ...
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2answers
911 views

Can't change permissions on extracted files Ubuntu 13.10

I'm trying to install a program from the *.x86_64 file but it seems I don't have the right permissions to do it. Even if I right-click and go in the "Permission" tab, when I try to change anything ...
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3answers
199 views

How do I unprotect a file which is owned by root?

12.04 LTS and I mistakenly protected a file named set using: chmod 700 /home/jatin/Desktop/set How do I unprotect it?
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1answer
375 views

Hard drive (hfsplus) will not allow me to chown or chmod

I tried chmod and chown, neither worked and I got a message like this, repeated for every file in the drive. chmod: changing permissions of ‘folder/filename.id’: Read-only file system failed to ...
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2answers
1k views

How do I set permissions on a network-shared folder?

I used system-config-samba to expose a folder on the network with no user authentication. But I got permission failures, so I used chmod 666 shared_folder. When I go to \\computername from a ...
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1answer
44 views

Getting issue with file permissions in Ubuntu 10.04

I've a development desktop having Ubuntu 10.04, Apache2 & PHP 5.3.2 installed. I've given 0777 permissions to my web application root folder and Apache2 is also running under current username. But ...
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1answer
79 views

In ubuntu matlab execution file cannot be run

I have stored my matlab installation in one of the partitions.But ubuntu doesn't recognize the matlab file as an executable file even after executing chmod +x command. Kindly help me to resolve the ...
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3answers
17k views

Permission drwxrwxr -x [duplicate]

I need some help about permission. I had a permission drwxrwxr-x but I try to change the permission with chmod 755 /folder/ and after that I receive permission drwxr-xr-x but I would like to change it ...
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1answer
440 views

Ubuntu corrupted log files

It seems that all my log folders located in /var/log are turning into files. For example, if I try to tail /var/log/apache2.log it will say "no such file or directory" I can see it in the file ...
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3answers
100 views

Having trouble with chmod

Before I would write "sudo chmod 777" and then the name of the file or folder but now it doesn't seem to change any permissions. I looked at multiple tutorials on how to use chmod and can't figure ...
0
votes
1answer
153 views

Why Kate can't edit my tex-file

I tried to edit a file by using Kate. But it said my file is read only (R/O). How can I change that? I tried sudo chmod a+rw kirjeet.tex & kate kirjeet.tex
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4answers
951 views

Why am I not able to use chmod 000 for a folder?

I can't chmod 000 for a folder in Ubuntu 13.10
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votes
3answers
23k views

default permissions for /var/www

I was trying to open a file and write to it with PHP at /var/www folder but it wasn't working so I did sudo chmod 777 var/www now I want to set the permissions for var/www to the default. what are ...
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1answer
192 views

restore permissions of ubuntu 10.04 after running “chmod 700 -R /” as root [closed]

I have run: chmod 700 -R / with root access on ubuntu 10.04. Is there any way for recovering from this situation other than reinstall? Then I again ran: chmod 777 -R / to fix it and now I have ...