# Running Sage from the commad line in Ubuntu 12.04

I'm relatively new to Sage and to GNU/ Linux. Sorry in advance if this question seem silly. But I need to learn how to do this. Here is my problem:

I have Sage installed from source in /usr/local/src. So every time I want to run Sage I have to type on the terminal

```
$ cd /usr/local/src/sage-5.4.1/
```

and once inside this directory, I have to type

```
./sage
```

How can I start Sage directly at the prompt $ just by typing "sage"?

Thanks a lot for the answer.