Compile and Run a c program in Ubuntu/linux

1. Open a file using the command vi filename.c
2. Write the c program and save the file
3. Compile the program using the command.
    gcc -o filename filename.c
   This command will invoke the GNU C compiler to compile the file and create an executable called filename
4. To execute the program type the command ./filename

Example

1. vi hello.c
2. gcc -o hello hello.c
3. ./hello