Show a bargraph with a ranking of countries with the highest number of deaths caused by COVID-19

covid-ranking.sh

#!/usr/bin/env bash
# covid-ranking.sh
##################
#
# Show a bargraph with a ranking of countries with 
# the highest number of deaths caused by COVID-19.
#
# Dependencies: curl, jq, termgraph
#
# (install termgraph via `pip3 install termgraph`)

readonly URL='https://corona.lmao.ninja/countries?sort=deaths'

readonly DEPENDENCIES=(curl jq termgraph)

checkDependencies() {
  local errorFound=0

  for command in "${DEPENDENCIES[@]}"; do
    if ! which "$command" > /dev/null ; then
      echo "ERROR: command not found: '$command'" >&2
      errorFound=1
    fi
  done

  if [[ "$errorFound" != "0" ]]; then
    echo "---ABORTING---"
    echo "This scripts needs the commands listed above." >&2
    echo "Install them and/or check if they're in your \$PATH" >&2
    exit 1
  fi
}

main() {
  checkDependencies

  curl --silent "$URL" \
    | jq '.[:10][] | "\(.country);\(.deaths)"' \
    | tr -d \" \
    | termgraph --delim ';' --title 'Countries with the highest number of deaths caused by COVID-19' \
    | sed 's/\.00$//'
}

main "$@"