= File Editing Example = 

After our last example you should have a file name ''alphabet.txt''. Let's use the nano editor to alter the contents of this file. 

* Navigate to the directory containing ''alphabet.txt''
* Open the file
{{{
[tulaneID@cypress1]$ nano alphabet.txt 
}}}

* Add the line ''Now I know my ABCs to the end of the file''
[[Image(nanoExample.png, center, 80%)]]

* Hold control (!^) and press the "x" key.
[[Image(nanoExample2.png, center, 80%)]]

* Type "y" for yes
[[Image(nanoExample3.png, center, 80%)]]

* Press enter/return to keep the same name or enter a new name for the file

You should now be back on the the command line. Use the '''tail''' command to check if your changes were saved.

=== Challenge ===
* Create a new file named ''helloworld.c'' that contains the following text

{{{#!c
#include<stdio.h>

int main(){
             printf("Hello World\n");
             return 0;
}
}}}

* Compile the above text using the following command

{{{
[tulaneID@cypress1 ~]$ gcc helloworld.c -o helloworld
}}}

* Check that there's a new executable file name helloworld

[[cypress/using|Next Section: Submitting Jobs]]