> dir
> cd
> md / rd
> copy / xcopy
> cls	# Clears all information and returning to a blank window.

> tasklist
> taskkill /f /im Skype.exe

> logoff		# To sign out of your account.
> shutdown -s		# Shut down the system instantly.
> shutdown -s -t 36	# Would set a timer for windows to shut down after 3600 seconds.
> shutdown /r /m \\cloud-3ga3if09g /t 90

cipher

> format d:/P:3		# Zero every sector on the volume and overwritten 3 times using a different random number each time.
> cipher /w:d:\		# overwrites deleted data on "D" volume using the Cipher security tool.
> cipher /w:e:\download	# overwrites deleted data on "E" volume "download" directory using the Cipher security tool.

> cipher /E \download	# Encrypts the specified files or directories.
> cipher /E demo.txt

> cipher \download	# displays the encryption state of the current directory and any files it contains.

> cipher /D \download	# Decrypts the specified files or directories.
> cipher /D demo.txt

Local Group Policy Editor

> gpedit.msc
> gpupdate /force

Query port usage

> netstat -aon | findstr 2000		# Find the process occupied by the corresponding port and find the PID number of the process.
> tasklist | findstr 10232		# Find the corresponding program name according to the PID number.
> taskkill -f -t -im syncthing.exe	# Kill the process.

Restart the Windows Explorer.exe Process and Rebuild Icon Cache

> taskkill /IM explorer.exe /F
> ie4uinit.exe -show
> del "%localAppData%\IconCache.db" /a
> del "%localAppData%\Microsoft\Windows\Explorer" /q /f
> start "" "C:\Windows\explorer.exe"
> exit

Notes

> ipconfig
> ping
> tracert
> nslookup
> netstat
> arp
> route

> attrib
> chkdsk
> diskpart
> del
> format

> sfc
> systeminfo
> wmic
> drivequery

> echo
> for
> pause
> call