[bash] Random wallpaper from Unsplash Source

randompaper.sh

#!/usr/bin/env bash
# Random wallpaper from Unsplash Source

function setWallpaper {
    local file=$1
    if test -z $file; then
        echo "Error: no file specified"
        return 1
    elif test -e $file; then
        local uri=$(perl -MURI::file -e "print URI::file->new('${file}')")
        gsettings set org.gnome.desktop.background picture-uri $uri
        echo "Wallpaper set"
        return 0
    else
        echo "Error: ${file} does not exist"
        return 1
    fi
}

function randomPaper {
    local file="$(xdg-user-dir PICTURES)/wallpaper-$(date +%Y-%m-%d).jpg"
    if  [[ ! -e $file || $1 = "-f" ]]; then
        local resolution=$(xdpyinfo | awk '/dimensions/ {print $2}')
        echo "Fetching wallpaper..."
        curl --progress-bar -Lo $file "https://source.unsplash.com/random/${resolution}"
        setWallpaper $file
    else
        echo "Wallpaper already exists"
        return 1
    fi
}

randomPaper

Requisites:

• curl
• x11-utils
• perl
• libglib2.0