What specifically does "chmod 777 ." mean in Unix?

Question

I know it sets read+write+execute permissions for all users and the dot means current directory, but does the dot mean current directory and all the files in it, or just the directory?

Answer 1

Hey Dude,

You got a good start, you just need a bump.

Okay to get this you need to first follow this.

In CHMOD the "777" has two meanings. Each position corresponds to different users.

For example the "x00" position referres to the Owner. Whatever you set here will affect only the OWNER of the file or directory.

The "0x0" position affect the GROUP.

The "00x" position affects the World.

Now, this might be a little tricky, it is binary.

In binary you count a little weird.

Heck with it. Look at this. If you still don't get it, email me
chmod 400 file - Read by owner
chmod 040 file - Read by group
chmod 004 file - Read by world
chmod 200 file - Write by owner
chmod 020 file - Write by group
chmod 002 file - Write by world
chmod 100 file - execute by owner
chmod 010 file - execute by group
chmod 001 file - execute by world

To combine these just add the numbers together:
chmod 444 file - Allow read permission to owner and group and world
chmod 777 file - Allow everyone to read, write, and execute file

Chmod
Permission Owner Group Other
Read 4 4 4
Write 2 2 2
Execute 1 1 1

Tom

Answer 2

Chmod 777

Answer 3

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RE:
What specifically does "chmod 777 ." mean in Unix?
I know it sets read+write+execute permissions for all users and the dot means current directory, but does the dot mean current directory and all the files in it, or just the directory?

Answer 4

omg are you saying there is only one type of person in a large political party and the republicans get to pick which one it is? wow! you're a moron! you see there are many different types of people on all ends of the political spectrum, see there are the fat *** lazy people who want something for nothing because its easier. then there is the over educated that want to give the lazy people whatever they want because they in fact are lazy as well and didn't want to pay for their education. now i know this will be tough for you, but just try and imagine that they're republicans that aren't all like bush too, amazing... see i'm more of a moderate republican, not an extreme republican. just like pelosi and obama aren't exactly the same. now i know you are most likely some moronic communist that wants everybody to be exactly the same so we can all be lovely robot people but that isn't so. we join political parties because they represent most of what we believe in, just like your dumb *** most likely thinks that all republicans are either bumpkins from the south or super rich corporate fat cats. those seem in direct odds with each other too don't they?

Answer 5

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So, according to nearly every Republican who clicked the "Answer" button, they don't care for your question and simply wanted to insult you some more. It seems pretty straight-forward. Perhaps reading comprehension is not for them?

Answer 6

Just the current directory.

If you wanted to make the changes recursively, you'd need to specify the -R flag, thus:

chmod -R 777 .

Answer 7

they are permissions for files to be read, written or executed.