The first LinuxC Program

The first LinuxC Program-general Linux technology-Linux programming and kernel information. The following is a detailed description. I searched the network for a day yesterday and tried to find out the program downloaded from the linux network to GEC2410. However, the most common reason for this is the transplantation of Bootloader, of course, I have an entry-level understanding of this east and west region. I don't want to go further, because there is no basis for C usage in linux, so I have to start with gcc.

Step into the topic:

Open the terminal ----> enter vim
[Root @ localhost root] # vim hello. c

Enter the vim command mode, press I on the keyboard to switch to the insert mode, and enter the following code:

# Include
Int main ()
{
Printf ("Hello! This is our embeded world! \ N ");
Return 0;
}

Press Esc to enter the command mode, enter: wq, the files will be saved and returned to the terminal.

The next step is preprocessing, linking, compiling, and running pulling.

[Root @ localhost root] # gcc-E hello. c-o hello. I // preprocessing
[Root @ localhost root] # gcc-S hello. I-o hello. s // compile without assembly, generate Assembly File
[Root @ localhost root] # gcc-c hello. s-o hello. o // compilation is not linked. Generate the target file
[Root @ localhost root] # gcc hello. o-o hello // generate the execution File
[Root @ localhost root] #./hello // run the execution File
Hello! This is our embeded world! // This is the output result.