Implementing my own Command
 

Hi,
I want to have a command of my own.
Let the command name is MyDate and it shows the date and time.
what I need to do for that? What are the steps I need to follow?

When I am in the console, I want to use it same way I use the other commands like cd,ls etc

Please guide

You need to pick a language to write it in.
Get some lessons in the language you want to use.

When the question has no substance unfortunately so do the answers.

You can write a script in BASH, Python, and many other languages.

You can create an alias based on existing commands.

It sounds like what you're talking about is using a Bash function. You can find a real quick, easy tutorial for making one. Otherwise, there are a lot of languages to do it with or aliases, as was suggested.

I want to use c or c++ language for that.

So, do you know how to compile and link ?

Yes, I can write a program or write a library which gives me the date and time.

Suppose I have the exe or lib which gives me the desired output then what I need to do to execute it on the console as command like ls,cd etc

So, stating that you can write a program, how did you check the programs you'd written ?

As far as I know, the console commands are found in /bin and /usr/bin. It may suffice to just put the executable into /usr/bin.

What for/why ?

He said that he wants to have a command of his own, which he can use like the built-in ones like ls, or cd. I think that could be achieved by putting an executable into the same folder where the other commands reside. Feel free to call me crazy.

Built-in into what ?

Assume that I have a .c file and that I have written in Linux and rcompiled that using gcc compiler and when I run the executable it gives me the desired output.
suppose that exe is int the /usr/Hoge/Test then I am able to run that like ./executablefile
I want that I should run that execuatable from any path and without giving command like ./executablefile

I want to give just executablefile (as ls and cd command) from any path

Umm.. yeah, sorry for failing basic computer science rigor.

*starts to write down what he means, but decides that its stupid and cuts it out*

Let's just skip this, I mean the commands that he can use without going into the folder where the executable resides, and run it from there (or otherwise referencing the full path). Sorry, linux newbie here.

Perform WEB search on two things:

bash aliases

and

PATH environment variable
.