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

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1answer
4k views

local wordpress installation, plugin installation and file permissions

I have a local wordpress installation and got everything working, until I tried to install a new plugin. Trying to activate the plugin, wordpress asked me for FTP connection information, which I ...
13
votes
3answers
15k views

Copy files without losing file/folder permissions

How can I copy files/folders from an ubuntu computer on a ext4 filesystem to another ubuntu computer which also is on an ext4 filesystem, using a usb stick which uses a vfat filesystem without losing ...
2
votes
1answer
206 views

Locked out of drive on Ubuntu Server

I was trying to delete some torrents that I had downloaded with transmission-daemon and was unable to from my samba share on windows due to transmission's default file creation permissions. I ...
2
votes
2answers
448 views

Can't mount USB flash drives or my CD/DVD drives

How can I fix the permissions to get rid of the following error and mount my USB and internal CD/DVD drive: Adding read ACL for uid 1000 to `/media/bret' failed: Operation not supported These ...
0
votes
2answers
2k views

how can I change user permission settings for an application

I am trying to prevent the guest user from accessing software-center (I know it can't install anything, but I don't even want it to browse) The file is owned by root and in group root. I run: sudo ...
6
votes
1answer
206 views

Chmodded 000 the home folder,now unable to log in

I accidentally issued the following command sudo chmod 000 /home/username/. And now I'm unable to log in. Also when I'm trying from the bash shell, my home folder is appearing as ...
3
votes
1answer
207 views

Directory permission

I am running 12.04 x64 server on ext4 disk. There are two user groups 'A' and 'B'. For a specific directory, I would like to give its all permissions to user group 'A'. Also I would like to give only ...
0
votes
1answer
433 views

Writable permission is not writable

I am running Ubuntu 12.04 x64 server on ext4 partition. I set a directory's permission to '766' as below. sudo chmod 766 /archive drwxrw-rw- 3 root root 4096 Sep 27 10:50 archive/ But, when I ...
4
votes
1answer
324 views

Assigning different directory permission for each different groups

I am running Ubuntu 12.04 64bit server on ext4. There are four user groups - marketing, sales, admin and etc. I need to assign different permissions to /archive as follows: rw for the marketing ...
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0answers
6k views

chmod - file permission on writable [closed]

I am running Ubuntu 12.04 x64 server on ext4 partition. I set a directory's permission to '766' as below. sudo chmod 766 /archive drwxrw-rw- 3 root root 4096 Sep 27 10:50 archive/ But, when I ...
1
vote
0answers
295 views

setting permission for executable file output of gcc [duplicate]

Possible Duplicate: How to 'chmod' on an NTFS ( or FAT32 ) partition? Can't make a file executable i m pretty new to linux and gcc. i have a file1.s file which i tried to ...
1
vote
1answer
888 views

Permission denied when other users create files

I have messed up my home directory. I'm using dash as my shell and by myself I can create files just fine, but others can't. I don't think that made sense as it's kind of hard to explain, so hopefully ...
2
votes
2answers
4k views

chmod u+s in /var/www

i have a problem at granting the right rights for the right user... i want to run pootle with apache, so i downloaded pootle. Then i copied it to /var/www, installed it and gave the www-data user ...
2
votes
2answers
10k views

How to repair “sudo: /etc/sudoers is mode 0640, should be 0440?”

Why might sudo chmod -R a+w * cause sudo: /etc/sudoers is mode 0640, should be 0440 sudo: no valid sudoers sources found, quitting and how might it be made to work?
2
votes
1answer
605 views

Are world-writable folders safe?

Is it safe to chmod a directory 777, or is it a security risk? One of my scripts requires that in order to run in multi-user situations, and I'm wondering if it's okay.
3
votes
1answer
328 views

files disappeared after using chmod

I set my /var/www/wordpress folder to 744 permissions and all of the files within disappeared. If I right click the /wordpress folder and click properties, it says there are 0 bytes in the folder but ...
2
votes
1answer
416 views

Using FTP with a Shared Windows Folder

I started to use Ubuntu two weeks ago, I still have some difficulty in understanding the whole world of Linux. I'm in front of the following scenario: I have a Windows computer running 12.04 in a ...
1
vote
1answer
1k views

How to provide user permission to read, write on `/dev/sdax`? What is the syntax?

I have two my hard disk divided into two partition (apart from swap). First one is /dev/sda3 on which I have my ubuntu installation. Second one is /dev/sda1. Now, when I try to copy a file to ...
3
votes
4answers
6k views

Permissions for apache webroot folder on dev server?

I am a web developer and have Apache setup on my local system for testing. I keep running into issues with the permissions e.g. unless I chmod any new directories to 777 my IDE cannot write to the ...
1
vote
2answers
580 views

Why can root still edit files with a permission of 0?

I just wanted to delete most files from an external HD except some certain ones. So I chmod these ones to 0 and did a sudo rm -r ./*. Painfully, the result was that everything got deleted. Why is ...
1
vote
1answer
561 views

How can I add file create read write and delete for a specific user?

Question: I need to give file create, read, write and delete access to /var/log for user bind only. How can I do that, short of allowing read and write and delete access for everybody ?
2
votes
3answers
2k views

How to transfer file permissions from one folder to another?

I did cp -r on a folder (copy), then removed the original. I have a backup with most of the files. How do I restore the permissions of the files & folders on the copy using the backup? It ...
0
votes
1answer
298 views

xubuntu 12.04 Thunar deletes files with permission r--r--r--. Is it a bug?

I tried to prevent my digital photos (.jpg files) from accidental deletion using chmod 444 *.jpg. All permissions are set and displayed correctly in a terminal (ls -la) as well as in thunar's file ...
2
votes
1answer
733 views

How do I change the default permissions of home directories created with adduser?

How can I change the default chmod of new home directories (created with adduser)?
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votes
0answers
68 views

Cannot use sudo command, changed permission of /usr folder [duplicate]

Possible Duplicate: How to get back SUDO into working condition? Here's how I messed up my ubuntu, I wanted to change file permissions of /usr folder and I did that by taking root privilege ...
1
vote
1answer
2k views

How to overcome “Permission denied” running C program even after “chmod +x”?

After compiling a C program on Ubuntu 10.10, after executing chmod +x ./a.out, I am still getting bash: ./a.out: Permission denied. How can I run my new executable?
2
votes
1answer
749 views

How to use `chown` and `chmod` to make a “pipe” or “pass through” link from guest directory to elsewhere

I want to either extend the size of my guest partition or figure out how to copy stuff from the guest partition to my normal /home directory. (Because of some other problems I can only run Xorg as ...
1
vote
2answers
2k views

Ubuntu took away permissions from my Data partition

The pangolin has struck again. The bug of the day for today is Ubuntu taking away my permissions on my Data partition (NTFS). One moment everything worked fine, the next moment I couldn't chmod ...
1
vote
1answer
489 views

I just recursively chmod'd everything under / to 750. Any tips?

I won't be the first and I won't be the last, I suppose. While playing around with the find command, I made a whoops and it would appear that instead of changing the permissions of the ~/web directory ...
0
votes
1answer
447 views

Unable to login to Ubuntu Permissions Issue?

Well, I think I royally messed this one up. In the process of changing permissions in my home directory, I now can't login using any of the 3 accounts I had setup, except for the Guest account. I ...
2
votes
2answers
3k views

Can't make a file executable

I'm using Ubuntu 12.04 64bit and I'm trying to make a file executable, but when I check the "Allow executing file as program", the check mark appears then disappear spontaneously. If it could help, my ...
0
votes
1answer
146 views

chmod 444 can't login

Using proftpd I'd like to login to server. I set permission to user directory to 444. When I am trying to login using ftp client - doesn't working, I can't log in. Did I do something wrong? Maybe I ...
4
votes
2answers
11k views

chmod: invalid mode: `+a'

System: ( lsb_release -a ) Distributor ID: Ubuntu Description: Ubuntu 10.04.4 LTS Release: 10.04 Codename: lucid This is my command: sudo chmod +a "www-data allow ...
9
votes
1answer
12k views

How to get chmod (octal) permissions of the folder in the terminal?

I can look in properties of this folder but I want to get properties fast and in digits (octal, e.g. 755, etc.) What am I to type in terminal to know the chmod of the file or folder I want?
1
vote
1answer
1k views

Inheritable chmod permission from parent directory

I have a directory named cache in /var/www, where I need to provide permission in following way: sudo chmod -R 777 cache but that's not enough because PHP script automatically creates ...
0
votes
2answers
13k views

Unable to change permission of the files on mounted partitions in ubuntu 12.04 LTS

I have just installed ubuntu 12.04 LTS. I mounted my SOFTS(/dev/sda6), a NTFS partition by selecting it on nautilus. After that I openend the terminal and tried to change the permissions of a file. ...
8
votes
3answers
13k views

How to fix sudo after “chmod -R 777 /usr/bin”?

I enetered chmod -R 777 /usr/bin and now sudo is not working. It is giving error that sudo must be setuid root. On looking via Google, some advice said to run chown root:root /usr/bin/sudo chmod ...
0
votes
1answer
1k views

Changing the permissions in root files without sudo from recovery

Hi I recently killed my etc folder by running: sudo chmod etc 417. Due to sudo being in that folder it cannot be accesed now, so I have to change the permissions back to the correct ones using the ...
4
votes
2answers
3k views

What are the standard file permissions for the /etc directory(file)

I kinda screwed up the /etc directory by running: sudo chmod 417 /etc Leaving me unable to use sudo: sudo: can't open /etc/sudoers: permission denied. sudo: no valid sudoers sources foundm ...
0
votes
3answers
5k views

execute file denied [duplicate]

Possible Duplicate: How to 'chmod' on an NTFS ( or FAT32 ) partition? I am a beginner on ubuntu 11.10, I want to execute some program named ./Pro but when i try: $ ./Pro I get ...
3
votes
2answers
148 views

changed the permission of bin to 700

I changed (through chmod) the permission of /bin to 770. Now, ubuntu does not boot. How do I fix this problem?
3
votes
1answer
997 views

can't chmod on external hard disk? [duplicate]

Possible Duplicate: How to change files permissions from a different hard drive? I have an USB3.0 external hard disk, partitioned to 3 NTFS partitions. When I plug the hard disk in, the 3 ...
2
votes
1answer
1k views

Cannot find a safe socket path in '/tmp'

A while ago I accidentally ran chmod 777 /, and stopped it as soon as I realized what I had done. Unfortunately, it must have gotten to my /tmp directory, because whenever I start to run Firefox now, ...
4
votes
2answers
30k views

How can I change permissions of a folder, including its enclosed files and subdirectories?

I need to recursively change the permissions of all folders, sub-folders and files from within ~/.local/share/Trash/expunged Does anyone have a clue or idea on how to do this? I have tried ...
2
votes
2answers
12k views

Setting directory file permissions in Ubuntu using chmod

whats the equivalent command of this (Fedora command) for Ubuntu: chmod +a "www-data allow delete,write,append,file_inherit,directory_inherit" app/cache app/logs When I try the above with Ubuntu ...
1
vote
2answers
1k views

Unable to Login (Ubuntu 11.10)

I'm having a weird issue. When I put my password using my account (ramiz) on the login screen of GUI, a blink of screen and it take me back to the login screen. I tried with Guest user and it is ...
1
vote
4answers
1k views

Permisions set to unknown after chmod 777

I just noticed that after running chmod 777 * on a directory that has sub-directories in it does what you would expect. It sets the permissions of everything, including the sub-directories to 777. ...
4
votes
2answers
5k views

Default filesystem permissions and access rights in 12.04?

I have for many years on Unix and Linux systems as default set filsystem permissions and access rights to read and write for user (i.e. myself), and only read permissions for group and others. In the ...
0
votes
1answer
2k views

Automatically mounted NTFS (not in /etc/fstab) won't chmod

I have an NTFS partition so I can share with a dual-booted Windows installation. chmod doesn't do anything, nor issue a warning to indicate this. I want other (Ubuntu) users to have RW permissions on ...
9
votes
4answers
18k views

Permission denied on ~ even though owner listed as me

Somehow, I managed to chmod and chown my ~ into oblivion. When I attempt to login through the shell, I get bash: ~/.bashrc : Permission denied Even after (as root) I've run chown -hR nroach44 ...