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#!/bin/sh printhelp () { exit } while getopts "hwxd:" o; do case "${o}" in w) DMENU="tofi" ;; x) DMENU="dmenu" ;; d) ARGS="$ARGS$OPTARG " ;; *) printhelp ;; esac done BOOK=`ls ~/Documents/shared | $DMENU $ARGS` [ -z "$BOOK" ] && exit 1 zathura "~/Documents/shared/$BOOK"