= 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 int main(){ printf("Hello World\n"); return 0; } }}} compile the above text using the following command {{{ [tulaneID@cypress1 ~]$ gcc helloworld.c -o helloworld }}}