chmod (short for change mode) is a Linux / Unix command used to change permissions of files and directories.

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Git pulling without root access

On a Ubuntu Server 10.10 box, I seem to require root access to use git pull (in my /var/www directory). error: cannot open .git/FETCH_HEAD: Permission denied. I have tried chmodding 0777 /var/www and ...
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chmod 777 on local server not working

i have a ubuntu 10.10 box on my local network and sshing with my mac what i did is chmod 777 the www directory recursively so that i can use my fav ide to develop on it. i did this sudo chmod 777 ...
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Making files created by a cronjob readable by apache

A software package I installed on my Fedora box has an associated cronjob. This cronjob creates html files that need to be readable by apache. At the moment, the files are not readable because they ...
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chmod doesn't seem to work on Cygwin as expected

I tried creating a file myFile and then typing chmod 000 myFile just to see if I got access denied trying to cat it or open it with vi, but no, I could still do whatever I wanted with it. So what is ...
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Can't change permission for bash.bashrc file in Ubuntu

I'm trying to change the permission for my .bashrc file in Ubuntu but don't seem to have permission. I've tried following the example here: Open up publicity.html for reading and writing by anyone. ...
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chown all files of removed user (symlinks)

I migrated my OSX System from one machine to another. Everything works fine, but when I check the files under /usr/local, they now belong to a user 502, not my newly created user (which has the ...
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chmod symbolic notation: unexpected “=” operation behavior

I am reading The Linux Command Line by William Shotts and I read somewhere in the book a part regarding permissions which says The operation may be a “+” indicating that a permission is to be added, a ...
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Recursive write permissions on files and folders: Prestashop installation

I am trying to install Prestashop in my Linux machine. But it says Recursive write permissions on files and folders: ~/config/ ~/cache/ ~/log/ ~/img/ ~/mails/ ~/modules/ ~/themes/default/lang/ ...
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how to join paths to {} inside an -exec option of a find command?

//// SOLVED //// I'm trying to copy several files scattered in a directory structure to another one where such files already exist but without write permission allowed. So I used a find command with ...
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Debian: Removing read permissions to a single user

i'm trying to set permissions with chmod in Debian Squeeze. Its there any way to remove read permission to a single specified user? chmod u-r file That seems to deny permissions from the user ...
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59 views

Copy permissions from owner

How can I copy the all file permissions of a folder from owner to users? Imagine that I have: -rw-r----- 1 124982 5000 201 2012-06-24 06:45 documentation.html I want to change to: -rw-r--r-- ...
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How to give user read/write access to folders?

I'm running a certain script that is using a non-root user to do the following... mkdir: cannot create directory `/srv/www/example.com/releases' *** [err :: 12.23.45.789] : Permission denied How ...
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Why doesn't chmod work in this case?

I'm trying to set a small webserver for personal use. I have a fodler /srv/http/cgi-bin/ which I want to edit as user and not superuser. I tried to chmod it as mentioned here. Here is the result: ...
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Why am I unable to change read permissions with chmod?

If I type this in the terminal chmod -R g+r "/media/truecrypt1/My folder/"* and then check the result wiht ls -l I still get -rwx------ 1 user user 127860 2012-03-16 15:45 sample.pdf What's ...
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Is there anyway you can restrict users from executing a command with another name?

I'm not asking an obvious question here. I would like to elucidate with an example. A user 'bob' is always executing 'chmod 777 /home/bob/impfiles' so that user 'alice' could make changes to the ...
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Linux permissions, mv is denied

I have the following structure (property is in the form user:group, user A belongs to both groups A and B, user B is just in the B group) : + dir1 rwxrwxr-x A:A + dir2 ...
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Permission denied altough chmod 777

I am running following commands: $ ls total 12K drwxrwxrwx 3 szr szr 2.0K Nov 14 12:08 . drwxrwxrwx 12 szr szr 2.0K Nov 14 11:23 .. -rwxrwxrwx 1 szr szr 1.6K Nov 14 12:08 config.xml -rwxrwxrwx 1 ...
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Unable to change access permissions on external ntfs Harddrive

I am fairly new with Linux when it comes to mounting hard drives, so hopefully this is a simple question. I recently purchased a 3TB hard drive that would have read/write access with both Mac and ...
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Why in Midnight Commander the chmod has 5 digits and what for?

In the file menu if I go to chmod, it returnes the chmod value for the folder / file. I understand the last 3 digits, the second is setuid/setgid/sticky bit (have read the docs on it but its use is ...
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Changing access rights of the specific folder for specifeid user

what is the exact analog of the following two commands in linux # chmod -R +a "www-data allow read,delete,write,append,file_inherit,directory_inherit" /path/to/moodledata $ sudo chmod -R ...
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Previous version of CGAL with Macports: “Error: Unable to execute port: Could not open file”

I'm trying to install a previous port of cgal with macports. I'm following this How-to: http://trac.macports.org/wiki/howto/InstallingOlderPort I already read this answer but it didn't solve for me. ...
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On Linux allow a file to be read/write but not deleted

Is there a way in Linux on a ext4 file system that I can make a file readable and writeable but not deletable? The directory that the file resides in still needs to be writeable by the owner of the ...
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Permanently changing permission of device

My question is related to a Saving permission changes for device question except it is for Ubuntu 10.10: Maverick. I just setup a FireWire audio interface. Everything works fine, except for I need ...
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chmod: removing “x” permission recursively totally borks the permissions

I have a folder with some contents (three files and a folder) that look like this: -rwxr-xr-x 1 max max 14504 2011-05-31 16:55 main.css -rwxr-xr-x 1 max max 2504 2011-05-31 16:55 reset.css ...
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Making a directory on unix readable,writeable,executable by me and no one else?

What is the proper way to make a directory that I created and all of its contents readable/writeable/executable only by me, and no one else? Is this sufficient: chmod g-rx mydir/ this should make ...
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chmod problem in ubuntu

I want to change user permissions of lots of files but I can not! I use this code: administrator@unknown:~$ sudo chmod 700 * -R or administrator@unknown:~$ sudo chmod 700 myfile -R I want to ...
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Change default permissions for new files and folders

Every time I create a new file or folder in Linux, it is accessible for r/w by myself, not the group. I want to change my system setting such that every new file or folder will be automatically ...
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How to make a local user be able to edit files created by _www user and group on OS X?

I'm using OS X Snow Leopard. I have a web application hosted locally in the web server folder with _www user and _www group. I'm unable to edit those files with my local user, who is part of the ...
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Creating files and directories with a certain owner (user/group) while sudoing

I need to wget something (results in a compressed file in cwd), then I have to extract it, then do some copy/move/modification stuff and perhaps finally execute an script (from the downloaded ...
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Add read permissions to all the directories of a path

I want to add (not modify other file permissions) for all the directories in the path written bellow. Something like chmod -R xx4 /home/mDB/admin/KNUCKLES/dbs/ The path /home/mDB/admin/KNUCKLES/dbs/ ...
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What will * in bash do?

My question is quite simple, if I am to enter these two line in OS X Terminal, what should happen? xupengjunde-iMac:Shane Shane$ cd /Volumes/External xupengjunde-iMac:External Shane$ sudo chmod -RN * ...
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Unable to edit files in _www group on OS X

I am using my MacBook as a local dev environment. In order to make the files publishable I had to give my web folder user and group of _www:_www using chown. I'm using another account to log into my ...
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after trying to modify permissions I can no longer access localhost

I was getting sick of having to sudo every command in my web development folder (/var/www) so I tried to change the permissions to 777. The function seemingly worked (that is, gave no error), although ...
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Shell Command that Combines chmod and chgrp

Is there a combined variant for chmod and chgrp that sets both user and groups permissions in one single system call for each file? This is useful for increasing performance on slow data layers such ...
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changing the ownership of a file in linux

I have a file "test" on an Ubuntu system owned by the root. The ls -l option is shown below. $ ls -l test -r--r----- 1 root abacus 373 Nov 12 19:19 test I know that only the owner of a file can ...
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How to use chmod to change a file's permission?

I used ls -l to find file permissions in a shell and found this: File 1: -rw-r--r-- 1 root root 451 Mar 9 15:25 file.class.php File 2: -rw-rw-r-- 1 andy dev 872 Mar 9 15:43 file.class.php I want ...
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Changed the mode of /var on debian

I ran chmod 777 recursively on /var/ and could no longer connect via SSH. I read that chmod 600 would fix it. I was able to connect after doing it but this was a bad idea. Is there anyway I can find ...
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Chmod, Groups, and Users

So I've tried looking this up but I've not found similar examples (please feel free to refer to them if your Google skills are better than mine). What I'm trying to do is as follows: I am hosting a ...
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Ubuntu Cannot change permissions on files I own and have RW to

I have a harddrive full of backups which for me is mounted at /media/chronus_ I have been trying to give another user rw permission to this drive. The problem is that I cannot change any permissions ...
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How can I skip mounted directories with chmod?

chown supports a -x option to ignore file system mount points. Is there an equivalent for chmod?
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I broke SSH by using chmod on an EC2 Instance — How do I correct?

I have been running an Amazon EC2 Instance for a while, and recently accidentally changed permissions/ownership on folders recursively. I can no longer SSH into the instance. I do not recall what the ...
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Granting full rights on all files (owned by su) within certain directory

I got some trouble with a server situation, where i keep some configuration files in a sub-directory of a web project. Using my superuser account, i make changes to these files, which NetBeans commits ...
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CentOS $chmod a+w /etc/sudoers command not found

I am very new to CentOS and I am trying to edit my sudoers file. First I am told to run the following: $chmod a+w /etc/sudoers and right away I hit an error: bash: a+w: command not found What ...
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Permissions of files/directories in Unix

It appears that each file/directory has a given set of permissions shown by the 10 characters to the far left of each listing if one were to type into the terminal ls -l Considering that you can ...
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cannot create directory. permission denied. but i have permission

i'm fairly new to linux, and ran ubuntu the other day. it is running dual boot with windwos 8. now, the problem is, even though i log in as root and give a specific folder ALL PERMISSIONS (#chmod 777 ...
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Shared hosting, stop user deleting .html file?

Hi guys I have set up a small shared hosting set up for friends. I have set the file chmod permissions to chmod 711 /home chmod 711 /home/testuser chmod 755 /home/testuser/public_html chmod o+r ...
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What do these chmod parameters mean?

What changes are being applied by u+s,o-rwx in the below? chmod u+s,o-rwx myUserGroup myFile
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Chmod 644 on /etc/ any way to fix?

I tried to tab complete something and I guess it wasnt there. I know you are not supposed to set the permissions to /etc/ like that, but my permissions seem to be all messed up. whoami prints out ...
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Why is group write permission ignored in Ubuntu?

I want my user to have full access to the local Apache root folder, and I also want the Apache user to have full access to the same folder. What I did was create a new group called DevGroup and I ...
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what do these permissions mean?

I did chmod on some files in Mac 10.7.3 and I accidentally entered the code 7744 instead of 744. The resulting permissions were: -rwsr-Sr-T After seeing this I reran chmod and fixed the ...