A shell program is a program that runs from the computer's command line. Although they were more common in older programs, some people still use them, as the are generally faster and and more minimalist than their graphical counterparts.
gcc is the most common C-compiler for GNU/Linux platform.
I dont know which OS you are referring In Linux in the shell you can run the following command df In Windows, you can click My Computer and press right click the drive what you want and select properties which shows the size, free size, occupied size etc
The Bourne shell (sh) ,The C shell (csh) ,The Korn shell (ksh) ,The Z-Shell (zsh) ,The POSIX shell,The Bourne Again SHell (Bash)null
Windows or Linux. Its a users option for this. Linux is free but Windows is more popular.
A shell in Linux is the interpreter that provides a commandline interface (CLI). There are many kinds of shells.
The Z shell is a Bourne-compatible shell for Linux and Unix systems.
bash (Bourne Again Shell) is the default shell in most Linux distributions. It was created as part of the GNU project.
Strictly speaking, a "shell" is simply the interface between the user and the rest of the operating system. In that definition not all shells on Linux are command lines. However, most day-to-day usage of the term "shell" does refer to command line user interfaces. Finally, "Linux shell" is not a thing. Linux is an operating system, specifically a kernel, not a shell. Most Linux distributions use BASH, but I personally prefer ZSH.
Shell is the bridge between Kernel and User.
echo $SHELL
The courses available for Linux include Linux server, Linux desktop, bash shell, and many others.
The shell.
C is a programming language. A shell is an interface.
To log into the system.
This is usually referred to as the "shell."
exit.