chmod is used to change the commonly used read, write, and execute permissions on files. It can change these permission bits for the file owner, the file's group owner, and everyone else. It can also change the more esoteric ‘permissions’ (attributes, reall) like set-user-ID, set-group-ID, and ...

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What does it mean if a directory has only x (executable) permission for certain user/group?

I stumbled across the directory /etc/ssl/private on Ubuntu (12.04), it has following permission: drwx--x--- 2 root ssl-cert 4096 7月 8 2012 private/ I wonder what does this mean for group ...
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4answers
808 views

grant permission in linux

I have a linux web server with 2 hard-drives. There are 2 users, one can access /home/user1 and the other user can access /home2/user2 I would like to grant user1 permissions to access /home2/users/ ...
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2answers
89 views

How to modify the permission of jar file exactly same as other machine jar file? [duplicate]

I have two machines, In my machineA I have a jar file with these permissions - -rwxr-xr-x 1 cronus app 16758150 2013-03-19 13:35 exhibitor-1.5.1-jar-with-dependencies.jar In my another machineB, I ...
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121 views

External HDD read/write permission changing from a cron job

So, I run an overnight python script that runs a backup of our web data in the /var/www directory, then moves the backups to an external HDD in /media. The script in scheduled in the sudo crontab ...
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0answers
453 views

Changing file permissions problem [closed]

A few hours earlier I bought a beaglebone (Ångström installed) and now I am trying to add nameserver 8.8.8.8 (google DNS) to /etc/resolv.conf. However when I open it with vim and try to add my ...
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3answers
99 views

How to compact a chmod UNIX command

Is there anyway to compact the follow UNIX command: chmod 755 scriptA.ksh | chmod 755 scriptB.ksh | chmod 755 scriptC.ksh | chmod 755 scriptD.ksh The above command makes every KornShell (ksh) ...
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1answer
46 views

Explain the “@” symbol in this permissions example [duplicate]

I have a file on my Darwin system and the permissions are: -rwxr-xr-x@ User: read, write, execute Group: read, execute Other: read, execute What is the 11th notation the @ mean? In addition to ...
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2answers
45 views

How can I give a permssion to all users for a path using the octal notation?

I'd like to give execute permissions on a path recursively so I can read a file in the directory. The chmod binary that I'm using on Android only supports the octal/numeric notation though. Normally ...
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1answer
31 views

how to display I/O file on shell [closed]

I am writing shell script and I need to display my output at the same time however it doesn't work with 2> somefile.txt and if I do | tee -a somefilel it will not overwrite which I need to . <> ...
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2answers
127 views

Files created by 'make' aren't getting executable permissions by default

I'm trying to build a project, and when I use the command make, I get the following errors: /bin/sh: line 4: .deps/ipset_bitmap_ipmac.Tpo: Permission denied make[2]: *** [ipset_bitmap_ipmac.lo] Error ...
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2answers
27 views

Unable to access a folder through group permissions

In order to secure data on my webserver, I have moved the PHP includes to a folder called /var/www-includes (outside of /var/www, the server root). I also ran chown root:wwwadmin and chmod 770 on that ...
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1answer
757 views

Chmod u-x isn't changing anything and I have no idea why

I'm a user on a Debian machine. When I create a file in my home directory, the default permissions appear to be 700, even though umask returns 0022: eulerz@foo:~$ touch testing eulerz@foo:~$ ls -l ...
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1answer
70 views

Removing access privileges to backup while maintaining current setup

I have a giant directory, and I am dealing with a backup. I would like to store this backup in as safe of a way as possible. One of the ways of doing that is removing rwx privileges through chmod. ...
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2answers
2k views

Giving PHP permission to write to files and folders

UPDATED FOR FURTHER CLARITY: According to http://expressionengine.com/user_guide/installation/installation.html, it says: For most Unix hosts the following is typical, but you may check with your ...
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0answers
15 views

Restore system with no execute permissions for bash and chmod [duplicate]

Good day everyone! One of my friends asked me a question: how to restore an unbootable Linux system (let it be CentOS or whatever) in the following situation: no execute permissions for bash no ...
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0answers
44 views

MySQL Backup folder permissions - Non downloadable by others

I created a PHP script which takes backup of the mysql database every day and then saves it to a folder called "BkPath". All the backups will be saved here. But am trying learn the chmod command to ...
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1answer
456 views

how do I mount a CIFS share so I can fully control the mounted volume on the client

It's a simple question: but I am in much pain over this situation, so here is the question: How can I "mount" a share so that a) the share is run on boot b) that I can control things like chown/chmod ...
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3answers
246 views

Directory appears as file?

So we copied some photos in a directory across to a NTFS partition last night, and they were viewable from ubuntu. Today the directory is not accessible from Windows, and when we booted back into ...
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1answer
218 views

Unable to change file permissions [duplicate]

Possible Duplicate: No effect of umask and chmod on mounted drives I am not able to change file permissions using chmod from the user who owns the file as well as from root. I am using ...
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1answer
86 views

Why is ./filename required to run executable script? [duplicate]

After creating a Python script file, test.py, in my home directory, and running chmod +x test.py to make it executable, and placing #!usr/bin/env as the file header, I expected to be able to run the ...
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2answers
66 views

Misuse of go-r *

I am working on a test server. Was logged in as root and issued cd / chmod go-r * I certainly revoked the write permissions for the users that I had created. Did I revoke the permissions (r/w/x) ...