TTC (True Type Font Collection) to TTF Extraction bash script

ttc2ttf.sh

#!/usr/bin/env bash

# depends on:
# pip3 install fonttools

font="${1}"

for n in {1..10} ; do
    echo $n
    pyftsubset "${font}" --font-number=${n} \
            --output-file="${font%.*}_chinese_only_${n}.ttf" \
            --verbose
done

ttc2ttf_chinese_subset.sh

#!/usr/bin/env bash

# extract only Latin and Chinese unicode ranges from a TTC/TTF font

# depends on:
# pip3 install fonttools

font="${1}"

for n in {1..10} ; do
    echo $n  #             CHINESE               BASIC LATIN               BOPOMOFO
    pyftsubset "${font}"  --unicodes=U+4E00-9FFF --unicodes=U+0000-007F --unicodes=U+3100-312F \
            --font-number=${n} \
            --output-file="${font%.*}_chinese_only_${n}.ttf" \
            --verbose
done