jellyfin renumbering

renumber.gawk

match($0,/([[:digit:]]+).*(\..+)/,a) { printf "%s %s%s%s\n", ENVIRON["title"], ENVIRON["EPPREFIX"], a[1], a[2] }

renumber.sh

if [[ $# != 1 ]]; then
        echo 'usage: renumber.sh <title>'
        echo
        echo You can use the EPPREFIX environ variable to set a prefix directly
        echo before the episode number. Consider the following
        echo
        echo    EPPREFIX="s1e" ./renumber "The Title"
        echo
        echo This will create symbolic links to each episode where the new
        echo file names follow the pattern:
        echo
        echo    ./The Title s1e1.mkv
        echo    ./The Title s1e2.mkv
        echo    ...
        echo
        exit 1
fi

gawkscript=$(dirname $(realpath $0))/renumber.awk
export title=$1

for file in ./*; do
        old=$(realpath "$file")
        new=$(echo "$file" | gawk -f $gawkscript)
        #echo file $file
        #echo old $old
        #echo new $new
        ln -s "$old" "$new"
done