<boily> le/rn \xc3\xb6rjan/\xc3\x96rjan is the di\xc3\xa6resed twin. He will punctuate your v\xc3\xb6\xe1\xba\x85\xc3\xabls, and maybe a few other unsuspecting letters.

#!/bin/sh
allquotes | if [ "$1" ]; then
    if expr "$1" + 0 >/dev/null 2>&1; then
        sed "$1q;d"
    else
        grep -P -i -- "$1"
    fi
else shuf -n 1; fi