Answer Posted / bhaskar roy

Kernel is the part of UNIX operating system which is
responsible for the creation and management of files and
processes. It interacts directly with the machine hardware.
It is represented by the file unix or vmlinuz, which is
loaded into memory when the machine is booted.

Shell is the command interpreter of the UNIX operating
system which runs perpetually at every logged-in terminal.
The shell processes a user request and interacts with the
kernel to execute the command. It also possesses a
programming capability.

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