Modifiers, who, what, why, when?

Modifiers are flags that are set on different attributes, objects etc. within a program to control certain things like access and other functionality. There are two types of modifiers; Access - modifiers are used to set the access level for classes, attributes, methods and constructors. What that means is it will set who/what and how …

Hardware…

The only part of a computer you can kick!

Redo last command as (g)root

Whoops I meant root or did I? It's less funny is you don't get the reference - google it. Running a command and then finding you need elevated privileges can be a bit annoying but this command below can save your hassle! # The below is re-run the last command executed but with sudo privs …

Did you want many dirs?

Creating directories/folders can be a laborious task if you need to make many especially if they are nested, this handy trick saves your bacon and makes life a lot easier! # -p means create the whole structure if it doesn't exist mkdir -p {dir1,dir2}/{a,b,c}/hello # Output crowzfx@pi-4b-3:/tmp/dir-blog$ tree . |-- dir1 | |-- a | …

! false

... it's funny because it's true

Cron!

Cron is a time-based scheduler to execute scripts/commands on a time frame that you set. This is a neat little utility that is often over-looked for forgotten. I'll be honest I didn't have much experience for cron for a few years so basically forgot all there is to know! Well here is the basics anyone …

Simple model management and generation in Java

In Java managing models and their generational usages can be a bit cumbersome when you are developing code or a system that has a lot of transitional states i.e. REST call to a API to retrieve some data to manipulate, polling from a topic to process a state change or something along the lines of …

Setting global git config

Setting the correct git config is a good indicator of a good dev and in some areas a requirement i.e. github will verify your commits if they can prove it came from you and a source that it knows to be verified. I won't go down the rabbit hole of git configuration as their documentation …

Finding and clearing out large files

We have all been where you are experiencing some funky behaviour in a *nix OS and little do you know you have filled up a file system because some log or process has spun out of control and is continually writing to disk. Well I done this again today without realising this is what was …