how to set write permission

[creativemadhan]

Hi,
I had set read, write and execute permission to a directory using the command
chmod -R 777 myfilename

this made that directory and its sub directory read, write and executable, but if i create a new directory inside that directory it dont have the same set if permission as the parent...what is the solution for this..

[devils casper]

change the ownership of parent dirctory.

chown -R <user_name>:<group_name> <directory>

Casper

[creativemadhan]

I checked its not working..
for the command
chmod +R nobody:nobody /root/Desktop/backup/
this is the result
chmod: invalid mode string: `+R'

whats wrong...is there any other way?

[devils casper]

its - not +.

chown -R nobody:nobody /root/Desktop/backup/

Casper

[cyberinstru]

Hey, it is not

chmod - Use chown

there is a mistake in what u have used...

It is "chown" and not "chmod" [suggested by Casper]

[devils casper]

ooops ! i didn't look into that. its -R and 'chown'. thanx cyberinstru.

[creativemadhan]

chown -R nobody:nobody /root/Desktop/backup/

changed the owner of the directories but still if i create a directory inside it..the new directory is not having same set of permission like its parent

[cyberinstru]

Once you set the ownership for the directory (you do this as root or as a sudoer), log on as that user and try creating files or directories. That should work. But if you create the files/directories with root privileges, then the ownership will be root....

Please let us know, if ur problem is not understood correctly.

[Cabhan]

The issue with this is what is called the umask. The umask determines the default permissions for anything you create.

If you run the command 'umask' from a terminal, you will see your current umask. These are subtracted from the system-default permissions (666 for files, 777 for directories).

So you cannot change the default permissions for only directories, but you can change your overall permission changing.

So for instance, if my umask is 0022, I create directories with permissions 755 (rwxr-xr-x) and files with permissions 644 (rw-r--r--).

You can change your umask by using the umask command. See the man page for more info.

[creativemadhan]

Thanx for the replies..yes i created the directories as root, now i tried it as another user it is working ...