stevewhitmore

Single line command to group many files into groups of however many. Useful for situations where there are directories with a very large amount of files:

i=0; for f in *; do d=dir_$(printf %03d $((i/100+1))); mkdir -p $d; mv "$f" $d; let i++; done

Running that command inside a directory with 1000 files will create 10 subdirectories with each containing 100 files. Each subdirectory will be names "dir_00{whatever iteration the loop is on".

Breakdown of command:

stevewhitmore

Including the CUSTOM_ELEMENTS_SCHEMA in the module allows the use of the web components in the HTML markup without the compiler producing errors

• Defines a schema that allows an NgModule to contain the following:
• • Non-Angular elements named with dash case (-).
• • Element properties named with dash case (-).
• Dash case is the naming convention for custom elements.

stevewhitmore

Reformat a USB

1. Identify the volume

$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.4G     0  3.4G   0% /dev
tmpfs           695M  1.7M  693M   1% /run
/dev/nvme0n1p2  234G   19G  203G   9% /

stevewhitmore

Random JavaScript Goodies

Things I dont use often but come in handy.

// get font size of selected element
const a = document.querySelectorAll('nav ul li a')[0]
const fontSize = window.getComputedStyle(a, null).getPropertyValue('font-size');
console.log(fontSize); // "16px"

stevewhitmore

Send Email via Gmail SMTP Server

Set up Gmail App Password

https://myaccount.google.com/apppasswords

Note: You will need 2FA activated for this to work

Configure Bash SMTP

stevewhitmore

Handy Git Bits

How to merge feature branch to master branch (assuming you can push to master)

git checkout master
git pull origin master
git merge feature-branch
git push origin master

stevewhitmore

Find

find <directory> -iname <filename>                # find files
find <directory> -type d -iname <directory-name>  # find directory
find . -name "filename" -delete                   # delete all files with given name

Grep

stevewhitmore

find . -name "node_modules" -exec rm -rvf '{}' +