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

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11 views

restore to original chmod and chown settings

I nuked my whole system attempting to make some "minor changes". The errors ranged from org.freedesktop.dbus.error.spawn.permissioninvalid to setuid helper is not correct to must be owned by uid0 ...
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1answer
23 views

Who can change a file permission or ownership in ubuntu? [duplicate]

Who has the privilege to change a file permissions or ownership in ubuntu ?
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1answer
15 views

Webserver permission problem

I've a permission problem on my dedicated webserver, but I'm not able to understand what's I was doing wrong. Ubuntu 14.04 Kernel 3.19.2 Versione Apache 2.4.7 Versione PHP 5.5.9 mysql 5.5 (all from ...
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1answer
38 views

I can't run a program in Ubuntu 14.04

I've got a problem with a program I downloaded last week from GitHub. I tried to chmod it (a+x), tick option to run it as a program, but it didn't help. I don't get any notifications. It just does ...
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2answers
28 views

Change name of executable file when using chmod +x

I have python file my_script.py When I run: chmod +x my_script.py I end up with two files that are called my_script.py, one executable file and one python file, when I try to get the size of the ...
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1answer
20 views

can't change file permissions of key file [duplicate]

I have a .pem file. The normal chmod [4/6]00 [key_name_here].pem command doesn't work. The permissions are stubbornly stuck at 444 or 644.
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1answer
27 views

How the heck do I make jar files executable?

I am running Ubuntu 12.04 on my Toshiba Chromebook 2 via crouton (I'm using the xfce4 desktop enviroment so don't give me Unity fixes) and I am trying to run a .jar program through OpenJDK6. I just ...
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1answer
28 views

Mounting hard drives problem

Why doesn't Ubuntu mount hard drives automatically when it's launching? Moreover, I cannot chmod +x to the files in the hard drives after mounting. They are formatted as NTFS. If NTFS is not ...
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0answers
9 views

Enable php pcntl: Cannot Create Regular File

I am trying to enable/install pcntl and I get the following error after running make: cp: cannot create regular file `/usr/lib/php5/20100525/#INST@24959#': Permission denied I am sure it is a ...
0
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1answer
26 views

Not detecting any external devices [duplicate]

I've recently installed Ubuntu 12.04 it was working fine unless I messed up with a command. I change all user permissions(as they call ago permission in Ubuntu) by running command sudo chmod -R 777 /. ...
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1answer
45 views

How do I revert to the previous permissions for a folder?

I changed permission of folder by chmod -R 775 example and now I want change it to previous permission mod, but I don't know what was that number instead of 755. That folder is my project folder and ...
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1answer
40 views

Unix permissions - what EXACTLY is the “owner group” (note: singular)?

I'm programming a Fuse file-system. So far so normal, didn't encounter unsolvable problems (except performance). However, I read the following articles: http://linuxcommand.org/lts0070.php ...
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1answer
98 views

Android studio only starts with sudo

I just installed Android Studio, but I can only start it with root permissions: sudo ./studio.sh otherwise it fails with Error: Could not find or load main class com.intellij.idea.Main I am not sure ...
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1answer
32 views

Is there any difference between umask value and chmod value?

I'm using umask in fstab settings. What I know is if i set 755 with chmod, the permission will be rwxr-xr-x. But, when I use umask in fstab with 755 value, permission that i get is ----w--w-. Giving ...
11
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2answers
1k views

What is the first number for in a 4-number chmod argument (such as `chmod 4555`)?

When I install a program, it recommends me to do chmod 4555. Okay, i know about values if I just use three numbers. For example chmod 555 test-file will give -r-xr-xr-x 4 for write, 2 for read ...
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0answers
55 views

Folder Permissions

I am having trouble serving a folder out using samba. I have already successfully shared a folder but my folder permissions are jacked up: [samba is successfuly shared, flexraid_pool is a folder I ...
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0answers
49 views

Give read/write rights for newly created files inside folder for users in group

I have created a user named ftpuser and a folder for him /home/ftpuser/files I added an existing user 'auser' to 'ftpuser' group sudo usermod -a -G ftpuser auser Last, I gave group ...
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0answers
674 views

Chmod error changing permission read only file system

I have three main partitions on my disc /dev/sda: /dev/sda1 2048 117186559 58592256 83 Linux /dev/sda2 117186560 128905215 5859328 82 Linux swap / Solaris /dev/sda3 ...
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1answer
40 views

Cannot edit php5.fcgi owned by Me with RWX owner permissions

Ok, I kind of thought I understood Linux permissions and then I encountered this one. I am running Ubuntu 14.04 LTS in a virtualbox on my Windows 7 pro laptop. All udpates are applied to windows, ...
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1answer
103 views

Permission denied apache even after chmod

I am trying to setup my LAMP server on ubuntu when i am about to change mod chmod of the files in the /var/www directory but when i try : sudo chmod 0644 www/* -R and sudo chmod 0644 www -R ...
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0answers
16 views

could not connect to server

To solve an error that said ( permission denied ), I tried to sudo chown –R edxapp / Then error appear says: must be setuid root. And to solve that I tried chmod u+s /usr/bin/sudo but then ...
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2answers
36 views

Setting files and directories to match umask setting recursively

Is there a way to go into my home directory and recursively set files and directories to match my umask setting? The issue is, way back when I started using linux, I didn't understand permissions. In ...
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2answers
160 views

`sudo chmod +x *` caused me cannot open anything

Today I used sudo chmod +x * -R in my $HOME folder, actually I didn't want to use it in $HOME folder, it was an accident. Afterthat I tried to use sudo chmod -x * to fix it. But now, I couldn't open ...
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94 views

Accidentally gave chmod -R 777 /usr in Ubuntu 14.04.1

I found few questions related to chmod in / but not in /usr. While changing permissions for specific directory, i gave sudo chmod -R 777 /usr. When i reboot the system, the system is completely ...
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42 views

chmod -R 777 /etc, I have no name! [duplicate]

I really screwed up and did sudo chmod -R 777 /etc After searching for hours for an answer I eventually booted into recovery mode and did: mount -o rw,remount / # because the file-system was ...
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3answers
533 views

Chmod is not working as expected

When i am about to change my file permission like this $ sudo chmod a+x *.* This error appear chmod: cannot access ‘*.*’: No such file or directory And when i want to change the permission ...
2
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1answer
125 views

can't access to a folder even after chmod 777

I just created a new user, and I want to give access to a folder. I have done: chmod -R 777 ./p and this is the result lisa@linux:/media$ ls -halt drwxr-xr-x 27 root root 4,0K dic 11 ...
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1answer
98 views

Is it okay to chmod 770 root directory “/”?

Output of ls: $ ls -lh / drwxr-xr-x 3 root root 4.0K Dec 9 18:56 boot drwxr-xr-x 17 root root 4.2K Dec 10 13:57 dev drwxr-xr-x 92 root root 4.0K Dec 10 13:57 etc drwxrwxrwx 9 lyndon root ...
0
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2answers
27 views

Site creation script - missing chmod permissions

We have recently taken ownership of a Linux server, on the server is a site creation script which works but seems to be missing the necessary chmod folder permissions (755?). I think we need to add a ...
0
votes
1answer
58 views

Boot for USB to fix file permissions

I will start from the beginning. I was a noob and ran a really bad command in Ubuntu and now I can't do anything with sudo. I ran: sudo chmod 644 / I was instructed to boot from a liveCD or ...
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0answers
30 views

Correct permissions or undo a command [duplicate]

I will start this question with I'm a noob and I broke linux. Probably shouldn't have ran the command I did but now I cannot use sudo for anything not sure how to undo fix what I did. The command I ...
2
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2answers
72 views

chmod only certain mime-types

I'm using file --mime-type * to find the mime-types of all files in a selected directory. Many of these files should not be executable and are .conf or their type is text/plain. Is there a ...
0
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2answers
125 views

User Rights letters to numbers

I am having Problems converting user rights. I want to assign the following rights to certain files/folders but dont know hat to translate them into a format which chmod will work with like chmod 755. ...
0
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1answer
665 views

virtualbox - Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE)

After I create a new Virtual Machine, when I start it, it shows following error: Failed to open a session for the virtual machine Milad. Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE). Result ...
0
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2answers
164 views

Setting correct permissions

First of all let me say that i am almost new to Linux so please be patient :) I have an Ubuntu 14.0.4 running on my Systems. What i am trying to do is: On my system there are sabnzbd and plex ...
0
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1answer
100 views

Make all new .sh file executable

One of my script is making new .sh files in /tmp/ folder how can I setup that all new files in /tmp/ folder will get chmod -x automaticaly because my script is failing when trying to run scripts in ...
5
votes
4answers
561 views

How do I make an entire directory executable?

I have an entire folder dedicated to python scripts. I'm tired of doing chmod on every new python script that I write. Is there a way to make every file inside my folder executable if it is a python ...
0
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0answers
43 views

The solution for permission denied of double OS

I first installed windows(Four disks: C, D, E, F) several years ago when I was naive. Later, I met the ubuntu and allocated some space to her. Now, I fall in love with open source and ubuntu so I use ...
3
votes
2answers
518 views

Root directory '/' locked after using chmod

I accidentally used sudo chmod 3 / which gives a execute and write permission to the root directory, while deleting the read permission. How can I recover from this, I cannot even use sudo now.
2
votes
0answers
30 views

Revert system fie premissions

I have mistakely changed the permission of the entire etc directory to 777. Now I'm getting frequent errors like ... is world writable! Is there a way to revert back to the default permission? ...
0
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0answers
51 views

how to rollback from giving permission to all files

I am new to ubuntu. while working on terminal unfortunately i typed the comment sudo chmod -R 777 / from root so it prints lot of lines with not permitted strings at end..but after some seconds the ...
0
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1answer
38 views

Undo wordpress chmod?

firstly im new to ubuntu and I did something im not sure of. I was trying to chmod wordpress folder because it was having problem not having permission to do anything. (Already installed xampp) ...
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votes
2answers
99 views

Hi i am unable to change the permission of a file using chmod , plz advice

chmod -x filename doesn't work. when I execute command like chmod -r filename chmod -w filename chmod -x filename they run without any error. But the permission of the files doesn't get affected. ...
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2answers
946 views

Linux dropfolder where users can't delete files

I am working on a file server project for school and I am using samba to share the folders. I have been playing around with the folder permissions but I can't seem to figure out how to make a drop ...
0
votes
1answer
169 views

Change the permissions of files and directories excluding one directory

I'm trying to change the permissions of files and directories, excluding one directory though. What I've got is: find ! -name test -exec chmod -R 700 {} \; test being the directory that I need ...
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votes
1answer
55 views

unable to change permissions

Using Ubuntu 14.04 LTS, I want a text file not to be executed when opened in nautilus or dash. ls-l shows this line for the regarding file -rwxrwxrwx 1 root root 1310149 Sep 20 10:28 then i run ...
0
votes
1answer
91 views

What is the exact syntax for chmod?

I want to give the file OpenRocket-13.11.1.jar executable permission by using chmod. So what has gone wrong with this command: /HomeFolder/Downloads chmod +x OpenRocket-13.11.1.jar It says no ...
0
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0answers
214 views

Trouble installing Netbeans

I am trying to install Netbeans 8.0.1 on my Ubuntu 14.04 OS and I am following the install instructions via ...
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votes
1answer
181 views

sudo chmod 755 /dev/sda7 -R simply returns a new command prompt line?

I am logged into my computer through the guest account, because i am unable to login through the master/admin. account via user interface. (Simply a blank, blue screen appears upon login.) So i'm ...
0
votes
2answers
40 views

What happen if the executable permission of chmod is revoked

What to do if I change the executable permission of /bin/chmod? How to recover from that scenario?