CMD Basics

'cd' stands for 'change directory' and the new directory you want to switch to is provided as the first argument.

cd tuna

Here, we're moving to the directory 'tuna.'

Switching to the previous directory

cd ..

The '..' means "previous directory."

Switching to the current directory (won't make a difference)

cd .

The '.' means "current directory."

What if we want to switch to the directory "salmon" inside "bacon" which in turn is inside "tuna"?

cd tuna/bacon/salmon

Forward slash (/) or back slash (\) represents levels of directories.

How about moving back 2 directories and switching to the directory named 'wavicle'?

cd ../../wavicle

The command 'dir' displays the list of all contents inside a directory.

dir

'mkdir' stands for 'make directory.'

mkdir test

The command above will create a directory named 'test.'

'rmdir' stands for 'remove directory.'

rmdir test

The directory named 'test' will be removed.

The command will compile 'main.cpp' and create an executable 'a.exe' out of it.

g++ main.cpp

You can add the flag '-o' (where 'o' stands for 'output') to specify the name of the output file.

g++ main.cpp -o test

Here, an executable 'test.exe' will be created.

You can specify multiple source files for compilation by providing the filenames separated by spaces.

g++ main.cpp apple.cpp tuna.cpp -o main

The compiler will compile 'main.cpp', 'apple.cpp' and 'tuna.cpp' and create 'main.exe' out of them.

You can execute a program by just writing its filename:

main.exe

This will execute a program named 'main.exe.'

You can run multiple commands by writing the commands with "&&" between them like this:

cd ../../wavicle && mkdir test && cd test

This will execute the 3 commands one after another.