macos

Think before you enable this, it could be a security risk

• Shutdown Mac
• Press and hold the power button until the Recovery Mode menu appears
• Select Options, then click Continue
• From the Utilities menu select Startup Security Utility
• Select your startup disk and click Security Policy
  • Choose Reduced Security
  • Check the option Allow user management of kernel extensions from identified developers

date on MacOS does not support --date, so a workaround is needed. Converting Date to unix epoch, adding one day in epoch and converting back.

The Scripty Way

Taken from a blog post

#!/bin/zsh

start=$year-01-01
end=$year-12-31
currentDateTs=$(date -j -f "%Y-%m-%d" $start "+%s")
endDateTs=$(date -j -f "%Y-%m-%d" $end "+%s")
offset=86400

while [ "$currentDateTs" -le "$endDateTs" ]
do
  date=$(date -j -f "%s" $currentDateTs "+%Y-%m-%d")
  echo $date
  currentDateTs=$(($currentDateTs+$offset))
done

The Brew Way

As I found out long after writing the above you can simply brew install coreutils and get a date command with the --date option. The only thing to note there is this: Commands also provided by macOS have been installed with the prefix "g".

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My operating system of choice on the client, usually on a MacBook Pro.