anti-capital shell script ... lowercase + convert camel to snake_case for everything in the current or provided directory and recursively in all subdirectories without discretion. will break binaries and hashes - this is intended because they were a function of capital

anti-capital.sh

#!/bin/bash

dir=$(pwd)/$1

if [[ $1 = /* ]]; then
  dir=$1
fi

regex='s/\([a-z0-9]\)\([A-Z]\)/\1_\2/g;s/\([A-Z0-9]\)\([A-Z0-9]\)\([a-z]\)/\1_\2\3/g;s/\(.*\)/\L\1/g'

find $dir -type f -exec sed -i -e $regex {} \;

in case you couldn't tell from the name/description, this was made as an anti-capitalism joke. don't actually use this unless you fully understand the consequences from reading the script