Skip to main content

grep command

grep -i 

-i will ignore case sensitive 

grep -B5

for example we want to see 5 lines before the keyword of krb5asrep. The below command will help. 




Say you want to find only email address from a bunch of files:

grep -r @gmail.com . 

grep -r -E -o "\b[a-zA-Z0-9.-]+@[a-zA-Z0-9.-]+.[a-zA-Z0-9.-]+\b" . 

-r: This option tells grep to search recursively in all files and subdirectories within the specified directory (in this case, the current directory denoted by . 

-E: This option enables the use of extended regular expressions, which allows us to use more complex patterns for matching. 

-o: This option instructs grep to only output the part of the line that matches the specified pattern. In this case, it will only display the email addresses that are found in the files. 

-i: This option makes the search case-insensitive, meaning it will match both uppercase and lowercase letters for the email addresses. 

\b: This is a word boundary anchor, which ensures that the email address is matched as a whole word and not just as part of a larger word.



Avi

Comments

Post a Comment

Popular posts from this blog

Installtion of SQLMutant tool

This tool is perfectly works on ubuntu 24 system. And I found it is not working properly in kali linux 24 version.   https://github.com/blackhatethicalhacking/SQLMutant/tree/main This tool need to use along with sqlmap tool. Showing this cheat sheet for kali or debian based system.  This tool actually analyze everything and give you the vulnerable url where sql injection is possible. You just need to use then sqlmap to exploit that.   Prerequisite: apt install pipx -y (for ubuntu) pip3 install uro or pipx install uro pipx ensurepath pipx completions  (not needed)  source ~/.bashrc   or restart system If go tool is not installed then run the below two commands first ( golang-go ) or follow this link to install go (https://mahimfiroj.blogspot.com/2024/12/installing-nuclei-in-kali.html) otherwise skip this step.   dpkg -l | grep packagename (Using this command you can check package is installed or not) apt install gccgo-go -y or apt install gol...
Post a Comment
Read more

Install Nessus from docker

Docker installation. Give the below commands one by one. apt install docker-cli or apt install docker.io After the installation is complete, if you are inside wsl then give this command to start docker, because inside wsl systemd (systemctl) does not work: service docker start WSL troubleshooting : If the above command " service docker start " does not work then use below command: dockerd (It may not work if any previous docker process is running. It will show you pid of that process. Use this command to kill that process " kill -9 pid " and run dockerd command again) If " docker ps -a " giving error like " Cannot connect to the Docker daemon at unix:///run/podman/podman.sock. Is the docker daemon running? " This is because you may installed podman-docker package. If you remove the package still you will get this error but you should remove the package. Then issue this command: env | grep -i docker DOCKER_HOST=unix:///run/podman/podman.sock   --...
Post a Comment
Read more

WSL - windows subsystem for linux

  1. From the start menu, type "Turn Windows features on or off". Check the box, Virtual Machine Platform and Windows Subsystem for Linux or in the command prompt simply give this command: wsl.exe --install --no-distribution Now Restart the system.  If wsl is already installed, then give this command: wsl.exe --update 2. Now from Microsoft store download kali linux and install it. Or you can give this command to see list of distributions. Then install based on your choice.  To see list of distributions: wsl.exe --list --online To install: wsl.exe --install --distribution <Distro Name> i.e.  wsl --install --distribution kali-linux 3. Now it will ask for username and password, say at the time of installing kali-linux here. Provide that.  4. Once it is installed, it has come with very minimum package installation.  Run the following commands to install all packages: sudo apt update sudo apt full-upgrade -y sudo apt install -y kali-linux-default (This re...
Post a Comment
Read more