I agree with ednl.
By the way:
The reason that you can execute most commands from anywhere
without specifying the full path is that there are common
directories for programs under Linux just as under Windows
("C:\Program Files" vs /usr/bin , /usr/local/bin etc.) and that
they are searched for matching executables.
You can decide which directories are searched for commands
via manipulating the PATH variable (the so-called search path).
/usr/bin and /usr/local/bin should already be included in that
variable , along with other directories.
Long-standing DOS users might remember this , too ...
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