Tutorial: Simple C in Linux (Ubuntu)

Create, and compile simple C file on Linux terminal.

Requirement:

You have updated and upgraded your Linux OS.

sudo apt-get update sudo apt-get upgrade

Installed gcc

sudo apt-get install gcc

Installed make (optional)

sudo apt-get install make

 

Steps:

Login to your Linux machine.

vi sampleC.c

Press I to enter Insert mode.

Type the following C source code:

#include<stdio.h> void main(void) { printf("Hello world\n"); }

Done with writing the source code.

Press Esc

Then :wq [write and quit vi tool]

To compile, you can do this in many ways;

Method 1 – direct compilation

gcc sampleC.c -o sampleC

or

Method 2 – compile using makefile

create a new make file

vi sampleMakefile

Type the following commands in makefile:

#applicationFile all: sampleC #.o file    sampleC: sampleC.o    gcc -o sampleC.o #.c file    sampleC.o: sampleC.c    gcc -o sampleC.c

Done with writing the commands in makefile.

Note:

You may replace “sampleC” by using your own filename.

# is used for command.

Press Esc

Then :wq [write and quit vi tool]

Execute the make file

make -f sampleMakefile

Make sure there is no error.

Now, your program is ready to be executed.

./sampleC

Sample output:

Hello world