[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

Use CHMOD To Allow Read, Write and Execute Permissions Recursively

Posted on 2012-03-12
7
Medium Priority
?
1,107 Views
Last Modified: 2012-03-28
Hello,

I'm going to tar up a few directories and scripts and I want to apply the chmod a+w+x to all files under the main directory and have those permissions apply recursively.  Is there a way to do that with chmod?  I know how to change and individual script file, but I tried chmod a+w+x and it didn't allow access to all users.  I want to do this and then tar it up so that the person who untars it can run everything.  Thanks for the help!  This is for Linux 32 bit OS.
0
Comment
Question by:cgray1223
7 Comments
 
LVL 30

Accepted Solution

by:
Randy Downs earned 668 total points
ID: 37713171
Try
chmod -R 777 /maindirectory/*.ext
0
 
LVL 11

Assisted Solution

by:rowansmith
rowansmith earned 668 total points
ID: 37713176
Use the number values instead

So chmod 777 = rwxrwxrwx
chmod 677 = rw-rwxrwx
chmod 477 = r--rwxrwx
chmod 177 = --xrwxrwx

In each case the 7 is made up of:

4 = r (read)
2 = w (write)
1 = x (execute)

So chmod 755 filename would result in rwxr-xr-x

Which is what you need if you want anyone to be able to execute a script (read and write)

Likewise chmod 700 filename will result in rwx------

See this link for further details.
0
 
LVL 1

Assisted Solution

by:ishanjrana
ishanjrana earned 664 total points
ID: 37713251
4 = r (read)
2 = w (write)
1 = x (execute)

chmod 777 /abc/f1.txt       -----owner has read,write,execute permission on f1
                                                 -----group has read,write,execute permission on f1
                                                 ------others has read,write,execute permission on f1


chmod 753 /abc/f1.txt       -----owner has read,write,execute permission on f1
                                                 -----group has read,execute permission on f1
                                                 ------others has write,execute permission on f1


chmod 721 /abc/f1.txt       -----owner has read,write,execute permission on f1
                                                 -----group has write permission on f1
                                                 ------others has execute permission on f1


chmod 760 /abc/f1.txt       -----owner has read,write,execute permission on f1
                                                 -----group has read,write permission on f1
                                                 ------others has no permission on f1
0
Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

 
LVL 68

Expert Comment

by:woolmilkporc
ID: 37713824
Don't modify your existing files, that's unnecessary and can even be dangerous from a security perspective.

Have tar modify the permissions during the archival process, so only the archived files will get the new settings.

tar --mode 777 -cvf archive.tar /source/spec

This works also using the symbolic notation:

tar --mode a=rwx -cvf archive.tar /source/spec

You can even change the owner of the files during archival ("--owner userid").

wmp
0
 

Author Comment

by:cgray1223
ID: 37715256
@woolmilkporc - Is there any way to change the permissions to the  -owner userid when the user is untarring the tar ball?
0
 
LVL 30

Expert Comment

by:Randy Downs
ID: 37715322
Try this

http://www.cyberciti.biz/faq/how-to-use-chmod-and-chown-command/

For example following command will setup user and group ownership to root user only for /backup directory:
# chown root:root /backup
0
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 37715353
No, unfortunately there isn't, and even if it were possible - you must be root to change a file's owner anyway.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

SSH (Secure Shell) - Tips and Tricks As you all know SSH(Secure Shell) is a network protocol, which we use to access/transfer files securely between two networked devices. SSH was actually designed as a replacement for insecure protocols that sen…
Fine Tune your automatic Updates for Ubuntu / Debian
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Suggested Courses
Course of the Month18 days, 21 hours left to enroll

834 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question