A little script for renaming font files if the filename has been obfuscated for some reason.

renameFontFile.sh

#!/bin/bash

### renameFontFile.sh - A little script for renaming font files if the filename has been obfuscated for some reason.
###
### Reasons you might want this tool:
###     - If you notice that you have a lot of fonts on hand, say that you have legally downloaded via a subscription to some service like Adobe Cloud.
###     - And you find those OTF files in a location on your system (for example): "~/Library/Application Support/Adobe/CoreSync/plugins/livetype/.r/"
###     - But you are dismayed because all of the font filenames have been obfuscated with useless names like: ".12345678.otf"
###     - You could just copy them somewhere else and run this tool on each OTF file to de-obfuscate the names. (Or not. It's a free country.)

function _log() {
    echo renameFontFile: "${@}" 1>&2
}

function _die() {
    _log FATAL: "${@}"
    exit 1
}

SOURCE="${1}"

DIRNAME=$(dirname -- "${SOURCE}")
BASENAME=$(basename -- "${SOURCE}")
EXTENSION="${BASENAME##*.}"
FILENAME="${BASENAME%.*}"

FONTNAME=$(fc-scan "${SOURCE}" | grep -E '^[[:space:]]postscriptname: "[-_a-zA-Z0-9]+"\(s\)$' | sed -E -e 's/^[[:space:]]postscriptname: "([-_a-zA-Z0-9]+)"\(s\)$/\1/')

if [ -z "${FONTNAME}" ]; then
    _die "${SOURCE}: Couldn't find a font name inside this file."
fi

if [ "${FILENAME}" = "${FONTNAME}" ]; then
    _log "${SOURCE}: This filename already matches the font name. Nothing to do."
    exit 0
fi

mv -v "${SOURCE}" "${DIRNAME}/${FONTNAME}.${EXTENSION}" || _die "${SOURCE}: Could not rename file."