Write a script that compiles a C file and creates an executable named myApp

PublishedJune 4, 2022

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C Programming

Part 3 of 40

From today, I will be starting lessons on C programming in my ALX Software Engineering class and I look forward to sharing with you everything I learn through this series.

Up next

Write a C program that prints whether a given number is positive or negative

Practical Example Assume that you have a program that generates a random number each time the program is run. Now, write a C program to tell whether the random number generated (which will be stored in a variable x) is a positive or negative number...

How to compile a C program using the gcc compiler

If you are using a Linux distro like ubuntu then you are likely to have the gcc compiler installed on it. Otherwise you can run the command below to install it.

sudo apt-get install build-essential

Once installed, you now have access to the gcc command.

To compile a C program with the gcc command, you need to pass the file containing your source code as an attribute to the command.

Let's assume that we have a file called app.c containing the source code of our C program, the gcc command will be:

gcc app.c

When the above command is run, all the four stages of the C program compilation will be completed and a final output file will be returned.

NB: The 4 stages of the compilation process are:

Preprocessing
Actual Compilation
Assembly
Linking

Hence, the gcc command above takes your source code through all these 4 stages and by default gives you an executable file with the name a.out.

What if you want the executable file to have a specific name?

You can add the option-o to the gcc command and give the name that you want for the execution file as an attribute.

gcc app.c -o myApp

The command above means that your source code app.c should be compiled into an executable file called myApp.

Write a script that compiles a C file and creates an executable named myApp

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C Programming

Write a C program that prints whether a given number is positive or negative

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How to compile a C program using the gcc compiler

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Comments

C Programming

Write a C program that prints whether a given number is positive or negative

More from this blog

How to compile a C program using the gcc compiler