No it's not the same. Linux (and other unix versions) just use the PATH
variable

In article <atopl1+107jd@...>, Sujan Sreenath wrote:

> even though i was typing isql in the /bin folder
> why was it running the isql in the /usr/in folder. For ex.
> DOS first checks the current folder for the executables
> and the other folders in the path next. Is it not the same
> on Linux?
>