general question...

[bdg1983]

Knowing that executables in windows are of the extension .exe, .com, etc
batch file : .bat ...

in linux, there are no extensions for executables??

[vee-eye]

Correct. There is no need for extensions at all on Unix systems, since (usually) everything is done at a command line. The real reason Windows needs extensions is that Windows Explorer (the GUI program that lets you navigate the file system) needs them in order to figure out which programs open which files.

[ 25 November 2001: Message edited by: vee-eye ]

[bdg1983]

Linux/Unix uses file permissions instead of permissions.

In any directory, type ls -l and you will see the file/directory permissions. The permissions are in groups of 3 rwxrwxrwx (owner|group|other).

Here is the File Permission NHF (http://www.linuxnewbie.org/nhf/intel/filesys/fileperms.html) that should help to explains things a bit.

There are plenty of documentation around that will explain permissions in far greater detail than I can. Just have a look/search around.

[bdg1983]

thanks