Draft of screenshoting script that also copies the output to clipboard

screenshot.sh

#!/bin/sh
set -e

readonly PROGNAME=$(basename "$0")

help () {
    cat <<EOF
Usage: $0 [OPTIONS]

Options can be:

  --select       interactively select area
  --no-select    do not interactively select area (default)

  --freeze       freeze when selecting area (default)
  --no-freeze    do not freeze when selecting area

  --help         print this help and exit
EOF
}

error () {
    rc=$1; shift;
    error=$(printf -- "$@")
    echo "$error" >&2
    help
    notify-send "$PROGNAME error $rc" "$error" || true
    exit "$rc";
}

## Read command line

SELECT=
FREEZE=--freeze

while [ $# -gt 0 ]; do
    case $1 in
        --select)
            SELECT='--select'
            ;;
        --no-select)
            SELECT=
            ;;

        --freeze)
            FREEZE='--freeze'
            ;;
        --no-freeze)
            FREEZE=
            ;;

        --help)
            help
            exit 0
            ;;

        *)
            error 2 'Unknown argument: %s\n' "$1"
    esac
    shift
done

## Find scrot and xclip

command -v scrot >/dev/null || error 3 'Could not find scrot.\n'
command -v xclip >/dev/null || error 3 'Could not find xclip.\n'

## Try to load XDG configuration.

readonly USER_DIRS="${XDG_CONFIG_HOME:-$HOME/.config}"/user-dirs.dirs
if [ -f "$USER_DIRS" ]; then
    . "$USER_DIRS"
fi

## Try to get XDG pictures directory. Default to home.

if [ -n "$XDG_PICTURES_DIR" ]; then
    TARGET=$XDG_PICTURES_DIR/Screenshots
else
    TARGET=$HOME
fi
mkdir -p "$TARGET"

## The following is a dirty hack to get scrot to work from i3 bindings.
## See https://bbs.archlinux.org/viewtopic.php?id=86507

sleep .1

## Take the picture.

scrot \
    $SELECT \
    $FREEZE --line style=dash,width=3 \
    --exec 'xclip -target image/png -selection clipboard $f' \
    "$TARGET"/'%Y-%m-%d_%H-%M-%S'.png \
    2>&1 \

notify-send "$PROGNAME" "Screenshot saved."