The command line, also called the Windows command line, command screen, or text interface is a user interface that's navigated by typing commands at prompts, instead of using a mouse. It can be a valuable resource and should not be ignored. Using a command line, you can perform almost all the same tasks that can be done with a GUI. However, many tasks can be performed quicker and can be easier to automate and do remotely.

Here are 30 commands that a computer guy should know today itself :

Ipconfig

• To get all your IP information

  

Ipconfig/ all

• To get all of your IP addresses, MAC addresses, DNS servers, DHCP server

Ipconfig/ all | findstr < your_need >

• It is used to get a specific address that we want. Can use findstr in all the commands If you want a new IP address

Sometimes the DCHP lease won’t auto-renew. Then, you might need to manually release and renew your IP address before you can go online.

Ipconfig/release

• To release the IP address.

Ipconfig/renew

• To renew the IP address.

• Will create a new fresh address for your system. Everything will start afresh

Ipconfig/displaydns

• To display the current DNS settings.

ipconfig/ displaydns | clip

• The clip command is used after a pipe ('|'), To copy all the DNS servers in your system to your clipboard so that you can copy and paste it anywhere.

Ipconfig/ flushdns

• Sometimes the DNS resolver cache caches items you’d like to remove. You can clear out all items in the DNS resolver cache by running the code.

• This command is useful to remove any negative cache entries when troubleshooting

  

nslookup < websit_name >

• Queries internet domain name servers interactively.

  

Cls

• To clean up your command prompt

getmac/v

• To get all your mac addresses.

  

Powercfg/energy

• Run your command prompt as administrator.

• Used to check if there is any power issue with your computer.

  

powercfg/ batteryreport

• Gives us the complete report of your battery

assoc

• Gives the information on which files are associated with which program.

• 

chkdsk/f

• To check if there is any error in your disk. If there is any error then it can fix them

chkdsk/r

• To check for physical sector issues. (It might actually reboot or restart, and may take a while).

sfc/scannow

• This command will check your system files. (includes window dll files ) if there is any issue then it will fix them.

DISM/online/cleanup - image/checkhealth

• Used to clean the image of the computer. If you want you can do a quick checkup to see if there is any issue.

DISM/online/cleanup -Image/RestoreHealth

• If the check comes up with some scary issues, then use this to restore or fix it.

tasklist

• To find the process which is running anonymously in your systems

tasklist/findstr script

• To find specific files such as a script.

taskill/f/pid < pid_number>

• Now take that process id and just kill it... /f is used to force kill it.

netah firewalls set all profiles state off

• Used to turn off window defender.

netsh firewall set allprofiles state on

• Will turn on windows defender.

ping < url >

• Used to ping

ping-t< url>

• Used to ping endlessly. Can be used for troubleshooting.

traceart

• Used to trace the path to any website until you reach it there

netstat

• It will tell you what you are connected to and what all is connected to you.

netstat - af

• Tells you what ports are all open.

netstat - o

• Tells the PID of all your connections.

Route print

• Displays and updates the network routing table.

• It displays the list of persistent routes is displayed

Route add..... Mask...

• Used to manipulate the network routing table

• Allows us to add a custom route to take.v

shutdown/r/fw/f/t 0

• This command restarts your systems and loads the bios.