Using GCC on any version of Ubuntu via Terminal

Using C++ on any version of Ubuntu is easy. I firstly kept searching for an external complier but later I knew the better use of GCC via terminal. I found some difference in using header-file and program ending codes when compared to Turbo C or Dev C++ running in windows. Here is the steps and an example programe. I have shown example of entering and displaying multiplication table of certain number upto 10 times. I used Gedit as a Text Editor to write C codes. Saving the file follows the universal rule as in any other programe, file-name should follow “.c” extension. I wrote following code and saved as mul.c in Desktop folder. Open Terminal. Go to Desktop by typing “cd Desktop” (case sensitive) Then type “/usr/bin/gcc mul.c -o mul” to compile, Here, mul.c is the file name saved in desktop using gpedit. And mul is the name of the executable file created after compile is over. Error free compiling process creates a new line and blinking cursor comes at the end. It also creates