Hello World under Linux

Finally began to learn Linux.

Start with Hello world.

1. View current directory

[Email protected]:~$ pwd
/home/lenovo

2. Create a new test directory

[Email protected]:~$ mkdir Test

3. Enter the test directory

[Email protected]:~$ CD test

4. New Hello Directory

[Email protected]:~/test$ mkdir Hello

5. Go to the Hello directory

[Email protected]:~/test$ cd Hello

6. New HELLO.C

[Email protected]:~/test/hello$ VI hello.c

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

7. Compiling hello.c

[Email protected]:~/test/hello$ gcc hello.c-o Hello

8. View the files in the current directory

[Email protected]:~/test/hello$ ls-al
Total 24
Drwxr-xr-x 2 Lenovo Lenovo 4096 2016-10-12 08:00.
Drwxr-xr-x 3 Lenovo Lenovo 4096 2016-10-12 07:55..
-rwxr-xr-x 1 Lenovo Lenovo 8298 2016-10-12
-rw-r--r--1 Lenovo 2016-10-12 07:59 hello.c

9. Execute the generated Hello program

[Email protected]:~/test/hello$./hello
Hello world!

Done!

The 6th step needs to understand the simple operation method of VI.

Hello World under Linux