How to compile and run C and C++ programs on Linux

C is a powerful programming language used for developing system software. This article will introduce you to running C and C programs in a Linux system through the command line. In this article, we use the 'gcc' and 'g' commands of GCC (GNU Compiler Collection) to compile C/C programs.

gcc is the GNU C compiler in GCC.

g is the GNU C compiler in GCC.

Installing development tools

To run C programs, the development tool package must be installed on the Linux system. Run one of the following commands to install the development kit according to your operating system.

$ sudo yum groupinstall "Development Tools"   ## 基于Redhat的系统 
$ sudo apt-get install build-essential        ## 基于Debian的系统

C language example

For example, write the code for Hello World.

#include <stdio.h>
int main()
{
   printf("Hello World!");
   return 0;
}

Create a new file on your system as follows:

$ vim helloworld.c

Compile and run C/C programs in Linux

Using GNU The C compiler compiles the above hello world program as follows:

$ gcc helloworld.c -o hello

Use C compiler to write the following commands.

$ g++ helloworld.c -o hello

The above command will create an executable file named hello in the current directory. You can directly run the same operation as other commands

$ ./hello

You can also copy the files under the bin directory (/usr/local/bin) to make them accessible system-wide.

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