script to copy screenshot to dropbox and get a link

dropbox_screenshots

#!/usr/bin/env bash

DOPDIR='/images'
ACCESS_TOKEN='<token>'

# generate random name
matrix='abcdefghijklmnopqrstuvwxyz'
length=20
while [ "${n:=1}" -le "$length" ]
do
    tempfn="$tempfn${matrix:$(($RANDOM%${#matrix})):1}"
    let n+=1
done

filename=$tempfn'.'${1##*.}
remotename=$DOPDIR'/'$filename
tmpname='/'tmp'/'$filename

if [ -e "$1" ]
then
    cp -f "$1" "$tmpname"
	out1=`curl -X POST https://content.dropboxapi.com/2/files/upload \
		--header "Authorization: Bearer $ACCESS_TOKEN" \
		--header "Dropbox-API-Arg: {\"path\": \"$remotename\",\"mode\": \"add\",\"autorename\": true,\"mute\": false}" \
		--header "Content-Type: application/octet-stream" \
		--data-binary @$tmpname`

	out=`curl -X POST https://api.dropboxapi.com/2/sharing/create_shared_link_with_settings \
		--header "Authorization: Bearer $ACCESS_TOKEN" \
		--header "Content-Type: application/json" \
		--data "{\"path\": \"$remotename\",\"settings\": {\"requested_visibility\": \"public\"}}"`

	link=`echo -n $out | grep -oP '"url": "\K.*?[^"](?=",)' | xargs`
    echo -n "$link" | xsel -b -i
    #notify-send -i go-down "Dropbox" "Link to screenshot copied to clipboard"
fi