We are doing an In-Place Upgrade from RHEL 7 to RHEL 8 in my organization and we've come to find out that not all RHEL 7 packages are removed after an OS Upgrade. I've been asked to report on all…
I was running a script and got the error: ./run.sh: line 21: $1: unbound variable Here it is # Make sure we have something to run **if [ "$1" = "" ]; then ** log "Usage: $0 program [args]" exit…
I think I did configure docker volumes correctly, but I can't understand why mv command success called from interactive bash shell. FROM ubuntu:rolling RUN apt update RUN apt install -y python3 python3-venv USER ubuntu $ docker run --rm --interactive --tty…
I have an HTML file that lays out images of text to create interesting typographic patterns. The images are placed in the local web page with <img src="[path-to-project-folder]/DIR/[filename].png">. The project folder has 15 folders with variations of all the images…
Context: Monorepository (Nx) with multiple applications In Azure DevOps I'm trying to retrieve the deployment token of my applications. Since it's not secure to store the token in a JSON on the repo, I want to save in a configuration…
I have the following script: echo "User already exists, delete user? [Y/n] " read -r -n 1 yn echo "$yn was pressed" When I run the script: Pressing y or Y (without [Enter]) displays the keystroke on the screen. Pressing…
This is my .env.test S3_READY_MESSAGE="s3 is ready" NGINX_READY_MESSAGE="nginx is ready" Bash to output variables $ echo $(cat ../../../.env.test | grep -o -E '^[^#]+') output: S3_READY_MESSAGE="s3 is ready" NGINX_READY_MESSAGE="nginx is ready" Bash to export variables export $(cat ../../../.env.test | grep -o…
I try install docker like this on EC2 amazon linux and I found this error # Install Docker sudo yum install -y docker sudo systemctl enable docker sudo systemctl start docker sudo usermod -aG docker ec2-user permission denied while trying…
I have a bash script initial-tests.bash that runs some tests, using another script with pure functions. It looks something like: #! /bin/bash source ./scripts/_functions.bash check=$(do_check) echo "$check" The script _functions.bash contains this: #! /bin/bash # Here we save reusable functions…
I am learning about shellcode development in C with an example from here. I can compile the assembly code and get de opcodes, also I can run successfully the ELF compiled with NASM, but I get a segmentation fault when…