I am new to PS and have been given a script to run. The first thing I do is type in `c:\powershell\ir.ps1`. This seems to work. Then after defining my clients directory I am supposed to be able to just type in functions such as `ir-n`. This worked at the person's desk that showed me how to do it, but I get the following error:

```
The term 'ir-n' is not recognized as the name of a cmdlet, function, script file, or
operable program. Check the spelling of the name,
or if a path was included, verify that the path is correct and try again.
At line:1 char:5
+ ir-n <<<<
  + CategoryInfo          : ObjectNotFound: (ir-n:String) [], CommandNotFoundException
  + FullyQualifiedErrorId : CommandNotFoundException

```

Is there something simple I can do to get it to run? I see the function in the `ir.ps1` file so I know it is there.