Convert CBR files to CBZ

cbr2cbz.sh

#!/bin/sh
set -e pipefail

# Converts all CBR files in current dir to CBZ
# Source:
# https://ubuntuforums.org/showthread.php?t=1273762&s=a388d691ed1d259329dc26304528a056&p=8676006#post8676006

convert() {
    dir=$(pwd)
    cbr="$1"
    name=$(basename "$cbr" .cbr)

    tmpdir=$(mktemp -d)
    cd "$tmpdir"
    unrar e -inul "$dir/$cbr"
    zip -q "$dir/$name.cbz" ./*

    cd "$dir"
    rm -rf "$tmpdir"
}

for f in *.cbr; do
    echo "converting $f"
    convert "$f"
done