Closing command in linux
 

hi all

How can I locked important orders

for exp : ls or cat , closing orders in linux server

sorry for my bad eng
tnx in advance

what do you mean by locked don't get it do you mean to save a file or what

You can change permissions to the files (to prevent reading by cat or any other editor) and to the directory which contains the files (to prevent listing): chmod 700 should do the trick.

The question is not at all clear.

The language is not plain, but "important orders" and "ls or cat: closing" is quite clear to me. Anyway, let's see what the OP replies.

Here is what I think the OP really means:
How can I find out the meaning of basic commands ?

tnx bro

chmod 700 ls ? or chmod 700 cat ?

you mean was this ? right?

sorry my eng is not good tnx all

Sorry, but given your last question it's not clear what is your request. Do you want to block the usage of some commands OR do you want to block the access to some files (those ones you called important orders)?

I think he meant the former. Orders = commands.

Ariyan: You can't really prevent people from using ls and cat, as ls is absolutely critical for normal use of the system and cat is an extremely basic utility. Can you tell us what you really want to do?

Yes. Even better would be

i mean (ls or cat or ... ) does not work anymore in the server

Is this a problem you are complaining of or is this a feature you want to implement ?
In the latter case, why ?

It sounds to me as if a lot of vital commands don't work anymore on the server. My first guess: someone has messed with the PATH variable.

more like the classic

chmod (or chown) -R <something> /

<oops hit rtn key too soon...>

That's been posted a few times over the yrs here.

chmod -R ls ?

or chmod 700 ls ?

which is true ?

Hello Ariyan :)

It is hard to understand you. Maybe it is language. Maybe it is Linux knowledge. Please write in your language and use a translation website.

Best

Charles