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

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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
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1answer
674 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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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 ...
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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?
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1answer
710 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 ...
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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 ...
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1answer
454 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 ...
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1answer
432 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 ...
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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 ...
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1answer
140 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 ...
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2answers
10k 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 ...
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1answer
10k 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?
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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 ...
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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. ...
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3answers
12k 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 ...
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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 ...
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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 ...
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3answers
4k 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 ...
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2answers
144 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
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1answer
946 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
993 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, ...
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2answers
29k 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 ...
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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 ...
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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 ...
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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. ...
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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 ...
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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 ...
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4answers
16k 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 ...
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1answer
719 views

Are there consequences to running 'sudo chmod u+s /sbin/shutdown'

I want to do this so that gShutdown application can shutdown the system when I'm not there to enter a password. But I've read on forums that changing linux commands with chmod can cause problems in ...
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1answer
234 views

Is it possible for a directory to change permissions of the files that are added to it?

I have a directory and I want all files that are put in it to have the permissions of **5. In other words I want the permissions of the owner and group to stay the same but the permission to be read ...
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2answers
442 views

How can I change a set of files Permsissions from Root to user

I copied A set of BlueJ files from /usr/share/doc/BlueJ to a ~/BlueJ directory however the files in folders are set to root permission and read only I need to be able to read/write them. So in BlueJ ...
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4answers
567 views

How can I limit a user to access just his folder? Not able to view/cd into any other thing?

How do I limit a user to access just his folder? Suppose I don't want the user to be able to cd anywhere else, isit possible? Do I need to chmod the whole system?
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1answer
784 views

How to make /var/www/html same as my /var/tmp directory?

I am using one software, who can save files to /var/tmp but not in /var/www/*.*. I did applied chmod -R 777 /var/www. But still it can write to /var/tmp but not /var/www How can I resolve this? (I ...
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2answers
2k views

Change folder permission

What permission should i apply to a folder so that everyone can see the hierarchy and all the files inside but they should not be able to read and write them. The folder can have multiple other ...
0
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1answer
1k views

“Permission denied” when starting binary despite “rwx” priviledge

I am trying to run the statistics software Stata 11 on Ubuntu 11.10. as a regular user and I get the following error message: bash: xstata: Permission denied The user priviledges seem ok to me as a ...
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3answers
738 views

Messed up file permissions

Not being an expert in Linux/Ubuntu, I had to install from scratch today and messed up w/file permissions. The thing is that, when backing everything up before reinstalling, a couple of important ...
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votes
3answers
6k views

What are the default file permissions for the home folder?

I have somehow inadvertently altered the file permissions of my home directory. I wish to change them back to the default permissions. However, I can´t seem to find out what the default is. ...
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1answer
2k views

Executable not running even after chmod'ing it

I am trying to run a BETA precompiled copy of rcracki .. but the problem is when I try to run the executable, it gives an error: I tried to format the snippet below into one code block, but it didn't ...
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2answers
720 views

How to access executable in a seperate partition? [duplicate]

Possible Duplicate: How to 'chmod' on an NTFS partition? I have just started using Ubuntu and I have my hard drive set up with an Ubuntu partition, a Windows 7 partition and a much ...
1
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2answers
3k views

Add user that can read / write a root, www-data files

How can I do that? I got user amira on my Ubuntu 11.4, I want him to able to see / read / write a root user files such as /etc/* and apache files
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2answers
7k views

chmod files only in all subdirectories

Please someone assist me with chmod, I have the following file structure -dir1 --file1 --file2 --dir1a ---file1a1 ---file1a2 --dir1b ---file1b1 ---file1b2 How do I chmod 655 to all files under dir1 ...
10
votes
4answers
21k views

Changing permissions on serial port

I'm using the Arduino IDE in Ubuntu, and am having issues with the serial port. It has worked in the past, but for reasons that may be unnecesary, I felt the need to change the ownership of some of ...
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1answer
592 views

ddclient not working without sudo

When I run ddclient (DynamicDns Updator) without sudo, I get WARNING: file /etc/ddclient.conf: Cannot open file '/etc/ddclient.conf'. (Permission denied) stat() on closed filehandle FD at ...
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2answers
352 views

How to recover from mistakenly chmod operation?

I screwed up all my files permissions under a directory, how can I recover. Especially, how to change the files that is non-executable back to read-write-only?What I did wrong was that I chmod all the ...
3
votes
3answers
7k views

Cannot write to Folder mounted with SSHFS

I just created a folder according to SSHFS (Ubuntu Docs) sudo apt-get install sshfs sudo gpasswd -a jm fuse sshfs -o idmap=user jm@example.com:/path/to/folder folder Then I found that the folder is ...
12
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1answer
4k views

Files are read-only after copying over samba

I used to copy files from one system to another system via samba. How ever I am getting the file only in read only mode. What i am doing now is i used to change the file permission after transferring ...
13
votes
4answers
5k views

What if I accidently run command “chmod - R” on system directories (/, /etc, …)

I accidently ran sudo chmod 755 -R / instead of sudo chmod 755 -R ./ I stopped it after few seconds, but now there is some problems such as sudo: must be setuid root How can I revert ...
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2answers
5k views

File permissions: why can't I list a directory?

I am able to list directories in a root shell, root@ThinkPad:~# ll /media/ total 36 drwxr--r-- 6 root root 4096 2011-05-12 16:41 ./ drwxr-xr-x 22 root root 4096 2011-05-12 13:14 ../ drwxr-xr-x 5 ...
2
votes
1answer
565 views

My newly added user cannot write to folder

Suppose I installed ubuntu with the user usr1 then I added usr2. I then create a group grp1 where this 2 users are added. A folder is owned by usr1 and has group grp1. But when I login as usr2 I ...
4
votes
3answers
3k views

problem with chmod command

I don't know what is happening experimentx@workmateX:/var/www$ sudo chmod 0777 -r /var/www/ chmod: cannot access `0777': No such file or directory experimentx@workmateX:/var/www$