dastep.sh

#!/bin/bash
set -e

# config
dir="$HOME/ss"

# make dir if doesn't exist
[ -d "$dir" ] ||
    mkdir -p "$dir"

# filename: yyyy-mmdd-hhmmss
fn="$(date '+%Y-%m%d-%H%M%S')"
fn="$HOME/ss/$fn.png"

# take the screenshot
scrot "$fn"

# upload and get url
url="$(
    curl -X POST \
        -F "secret=hunter2" \
        -F "sharex=@$fn" \
        http://example.com/up.php
)"

# put link on middleclick clipboard
printf '%s' "$url" | xclip

# put link on ctrl-v clipboard
printf '%s' "$url" | xclip -selection clipboard

# and print it in the terminal
printf '%s' "$url"