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

• Hold control (^) and press the "x" key.

• Type "y" for yes

• 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

#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