Linux Cheatsheet

1.  System Information

•  uptime = Show how long the system has been running.
• hostname = Shows system host name.
• hostname -I = Shows IP address of the host.
• date = Show current date and time.
• whoami = Who you are logged in as.
• cal = Shows this months Calender.
• w= Display who is online.

2.  File and Directory commands

• ls =List all files in current directory.
• pwd= Dispaly the present working directory
• mkdir dirname= Make directory
• rmdir dirname= Remove directory
• rm =Remove fiile
• cp file1 file2= Copy file1 to file2
• mv file1 file2= Move file1 to file2
• cat file=View the contents of file
• head file=Displays first 10 lines of file
• tail file=Displays last 10 lines of file

3. Networking

• ifconfig= Displays IP address and all network interfaces
• ping host=Sends ICMP ping requests to host
• whois domain=Displays whois information of domain
• dig domain=Displays DNS information of domain
• wget https://domain.com/file=Download the specified file
• netstat -nutlp=Displays all listening UDP and TCP ports corresponding programs

*Note:All commands are Case sensitive