sunny yiu

Installing and running mongodb on a mac is very easy with homebrew: It runs on localhost as a non-root user. You can verify that mongodb is running by searching for mongod in your running processes and by checking for the logs: Use mongo command to start a mongo shell to the running instance. CTRL-D to … More Install and run mongodb on macOS as a non-root user

Photo by Patrick Lindenberg on Unsplash Before doing anything: backup your data! A disk contains partition(s). Each partition contains a file system like ext4. To grow a file system, you have to: Resize the partition Resize the filesystem To shrink: Resize the filesystem Resize the partition The order is important. Following is an example of: 1 disk: xvdb … More Grow and extend an ext4 partition and filesystem

This is a minimal example of how you would run a script “detached” on a remote server, so you can disconnect SSH, and free up your Terminal to do other things, or even close your Terminal and turn off your computer altogether. Let’s say we want to run some script on a server, say fix-stuff.sh, … More Minimal example of a “detached” script with tmux

When it comes to running chmod on a nix box I always find it hard to remember which number corresponds to read, write and execute. I like to think that I understand binary enough to do maths, but it just doesn’t click for me which one maps rwx. As such I find that I always leave … More PDF chmod cheat sheet