Skip to content

Instantly share code, notes, and snippets.

@zuloo

zuloo/moonphase.sh

Created December 30, 2015 15:28
Show Gist options
  • Save zuloo/f2fed0de6ddbc0d25e2e to your computer and use it in GitHub Desktop.
Save zuloo/f2fed0de6ddbc0d25e2e to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. zuloo created this gist Dec 30, 2015.
    27 changes: 27 additions & 0 deletions moonphase.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,27 @@
    #!/bin/bash

    moonphase(){
    local lp=2551443
    local now=$(date -u +"%s")
    local newmoon=592500
    local phase=$((($now - $newmoon) % $lp))
    local phase_number=$((((phase / 86400) + 1)*100000))

    # Multiply by 100000 so we can do integer comparison. Go Bash!

    if [ $phase_number -lt 184566 ]; then phase_icon="○" # new
    elif [ $phase_number -lt 553699 ]; then phase_icon="❩" # waxing crescent
    elif [ $phase_number -lt 922831 ]; then phase_icon="◗" # first quarter
    elif [ $phase_number -lt 1291963 ]; then phase_icon="◑" # first quarter
    elif [ $phase_number -lt 1661096 ]; then phase_icon="●" # full
    elif [ $phase_number -lt 2030228 ]; then phase_icon="◐" # waning gibbous
    elif [ $phase_number -lt 2399361 ]; then phase_icon="◖" # last quarter
    elif [ $phase_number -lt 2768493 ]; then phase_icon="❨" # waning crescent
    else
    phase_icon="○" # new
    fi
    echo $phase_icon

    }

    moonphase