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Where can I find the program that runs the -wc command?

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Top Forums UNIX for Beginners Questions & Answers Where can I find the program that runs the -wc command?
# 1  
Old 04-17-2019
Where can I find the program that runs the -wc command?

Hey guys, I was wondering. When I enter a command in the terminal -wcl for a word count, where is that program located in the kernel?
# 2  
Old 04-17-2019
wc is not located in the kernel.

wc and similar shell builtins and other similar programs run in the shell, not the kernel.
# 3  
Old 04-17-2019
Ah I see so where might I go to look at the code itself, any idea? Would it even be possible?
# 4  
Old 04-17-2019
Hi Neo...

More to the point why is the OP interested in entering kernel space, (ring 0), at all?

If you are running Linux you have two methods /dev/<device> for _direct_, (term used loosely), HW access and 'int 80' for assembly code...
Linux System Call Table
# 5  
Old 04-17-2019
Originally Posted by Circuits
Ah I see so where might I go to look at the code itself, any idea? Would it even be possible?
You mean the code for wc ?

The start to the answer for that question depends on the operation system you are using / interested in.
# 6  
Old 04-17-2019
Yes wc, I am using Ubuntu 18.04.
# 7  
Old 04-17-2019
For Ubuntu, you can read the source code directly yourself.

For example, you can pull it down and search it using, like so:

apt-get source linux-source-3.2.0

or, you can go to the Ubuntu archive here:


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