Bulk convert cbr files to cbz

cbr2cbz.sh

#!/bin/bash
#
# Bulk convert cbr files to cbz
# Will recursively convert all cbr files for the provided path
#
# - Maintains exact file structure within archive
# - Defaults compression level to 'store' (no compression) as most compression already done in the images
#
# Requirements: `sudo apt install unar zip`
#
# Ensure this file is executable: `chmod +x cbr2cbz.sh`
#
# Usage:
# - Place this file 'cbr2cbz.sh' in your file system
# - From the command line, navigate to the directory where you placed it
# - Run using `./cbr2cbz.sh /full/path/to/files/`
# - IMPORTANT: Must use full path, if unsure, navigate to the directory
#   you want to convert and type `pwd` (that's the full path)
# - If you run `./cbr2cbz.sh` without a path parameter it will use the
#   the current working directory
#
# By default it will leave all original cbr files in place
# Uncomment the 'trash' line below to delete them after successful conversion
# NB. Tested on my own collection but there could still be some edge cases.
# Suggest testing on a small sample first.
#
# Troubleshooting
# - Receiving error: `touch: setting times of '/path/to/file.cbz': Operation not permitted`?
#   Run `sudo ./cbr2cbz.sh /full/path/to/files/` as your user may not have permissions to update the file


set -e # exit on error

# If no directory is specified, then use the current working directory (".").
if test -z "$1"; then
   SOURCEDIR=`pwd`
else
   SOURCEDIR="$1"
fi

echo "Using $SOURCEDIR"

echo "Converting CBRs to CBZs"

# Use RAM disk for temporary files.
WORKDIR="/dev/shm/"

# Separate files using ␜ http://graphemica.com/%E2%90%9C.
# Otherwise it will break on whitespace
# Could use IFS=$'\n' but it's a little more fragile
IFS="␜"

for INFILE in `find "$SOURCEDIR" -iname "*.cbr" -printf "%p␜"`; do
    # Absolute path to old file
    OLDFILE=`realpath "${INFILE}"`

    # Get the file name without the extension
    BASENAME=`basename "${OLDFILE%.*}"`

    # Path for the file. The ".zip" file will be written there.
    DIRNAME=`dirname "$OLDFILE"`

    # Name of the .zip file
    NEWNAME="${DIRNAME}/$BASENAME.cbz"

    if [ ! -e "${NEWNAME}" ]; then
        # Set name for the temp dir. This directory will be created under WORKDIR
        TEMPDIR=`mktemp -p "$WORKDIR" -d`

        # Create a temporary folder for unRARed files
        echo "Extracting $OLDFILE"
    
        # extract rar to temp directory
        unar -D -o "${TEMPDIR}/" "$OLDFILE"

        # move into temp directory to ensure zip archive matches exactly the original
        cd $TEMPDIR

        # Zip the files with no compression (store)
        zip -Z store -r "$NEWNAME" .

        # Preserve file modification time
        touch -r "$OLDFILE" "$NEWNAME"

        # Delete the temporary directory
        rm -r "$TEMPDIR"

        # OPTIONAL. Safe-remove the old file
        # gio trash "$OLDFILE"
    else
        echo "${NEWNAME}: File exists!"
    fi
done

echo "Conversion Done"

https://gist.github.com/jaredlt/eef3ce973b6040f06396976314e9be60#file-cbr2cbz-sh-L74
unar -> unrar edit I did not know that's a thing

https://gist.github.com/jaredlt/eef3ce973b6040f06396976314e9be60#file-cbr2cbz-sh-L89

You cannot move files to trash from bind mounts so the script failed for me. As there's really no solution to this that I've found, I just changed the trash command for a regular rm

I get this when I run it in terminal on mac
find: -printf: unknown primary or operator
any fixes?

I get this when I run it in terminal on mac find: -printf: unknown primary or operator any fixes?

@mslmn

quick search gives this https://stackoverflow.com/questions/752818/find-lacks-the-option-printf-now-what

FYI macos uses BSD versions of standard UNIX programs, not the GNU ones that most if not all Linux distros would

Thanks! This fixed the error but now I'm getting a different one

mktemp: illegal option -- p
usage: mktemp [-d] [-q] [-t prefix] [-u] template ...
       mktemp [-d] [-q] [-u] -t prefix