naveensd101 / linux101

Repo to maintain popular bash commands (or anything terminal related commands) with its use and additional flags.

Basics

vim editor

• vim <file-name> Open a file
• ESC To enter Normal Mode
• :w To save the file. Use this command only if you are in 'Normal` mode
• :q To exit out of the eidtor. This also works in Normal mode.
• :q! To quit Vim without saving the data file (all unsaved changes are discarded).
• :set number To show line numbers
• vim <direcotry-name> Opens Vim explorer.
• / Search Pattern/Word.

Network:

• ifconfig => shows the network adapter details
• iwconfig => ifconfig but for wireless adapters
• arp -a => Associates ip addresses with MAC addresses.
• netstat -ano => shows all the ports that are open and what is connected to them.
• route => shows our routing table
• Ping <destination> Test connectivity between current user and destination.
• ssh <username>@<hostname> connect to a remote server Securely
• nmap <ip address range> Port scanner which can also be used to find vulnerabilities
• traceroute <ip/website> Shows all the router ips on the path between your machine and the website's server

Copying files

• rsync /from/path /to/path
• -P => progress bar
• -r => recursive for dirctories

Metasploit

• msfconsole Opens up metasploit which is a framework that allows us to attack other machines using known vulnerabilities
• msfsearch <keyword> Searches for known exploits related to that keyword
• msfvenom -p <payload> Allows us to create specific payloads that can be sent to a victim's machine to exploit.

Show off (Fun)

• cmatrix shows text rain like matrix movie
• cowsay <text>generates ASCII art picture of a cow with text input.
• hollywoodscrews up your terminal and makes it look like movie hacking scene. //respective packages must be pre-installed in the system

Bootable usb

• fdisk -l list all the partition of storage medium - with this find out your usb name
• `sudo dd bs=4M if= of=/dev/sdx status=progress && sync
  • progree will give you status bar
  • sync is to clear the cache
  • 4M means we pass the data in 4MB chunks (not sure)
• sudo wipefs --all /dev/sdx
• sudo cfdisk /dev/sdx
  • dos, New, max size, primary, write, yes, quit (some options that will pop up)
• sudo mkfs.vfat -n <name> /dev/sdxy
  • here we have to include the y which is the partition name

linux101's Issues

add any command

Add any command related to Linux, bash etc