I have this shortcut for converting alphabets and numbers to bold. Mainly use it to format book titles for reviews I post on twitter. a2b () {

I have this shortcut for converting alphabets and numbers to bold. Mainly use it to format book titles for reviews I post on twitter. a2b () { ip_expr="$@"; if [[ $# -eq 0 || $1 = '-' ]]; then read -r ip_expr; fi; echo "$ip_expr" | perl -Mopen=locale -Mutf8 -pe 'tr/a-zA-Z0-9/𝗮-𝘇𝗔-𝗭𝟬-𝟵/' } Didn't know about `unifont` and `unisupers` mentioned in the post, will check them out.