When you write a new program or shell script, you'll probably
want to be sure that its name doesn't conflict with any other commands on the
system.
For instance, you might wonder whether there's a command named tscan.
You can check by typing one of the commands in the following example.
If you get output (besides an error) from one of them, there's probably
already a command with the same name.
(The type command works on ksh, bash and many Bourne shells;
I've shown it with a currency sign ($) prompt.)
which
whereis
alias
|
% man 1 tscan
No manual entry for tscan in section 1.
% which tscan
no tscan in . /xxx/ehuser/bin /usr/bin/X11 /usr/local/bin ...
% whereis tscan
tscan:
% alias tscan
%
$ type tscan
tscan not found |
|---|
