Less pager

pager.sh

#!/bin/bash

text=$(curl -s 'https://baconipsum.com/api/?type=meat-and-filler')

pager() {
  # if stdout is not to a TTY, copy directly w/o paging
  [ -t 1 ] || { cat; return; }

  if [ -n "$PAGER" ]; then
    "$PAGER"
  elif command -v less >/dev/null 2>&1; then
    less
  else
    echo "WARNING: No pager found; falling back to cat" >&2
    cat
  fi
}

while getopts "l" option; do
    case $option in
        l)
          list='true'
          ;;
        \?)
          echo "wrong option."
          usage
          exit 1
          ;;
        h)
          usage
          exit 0
          ;;
    esac
done
shift $(($OPTIND - 1))

if [ "$list" = 'true' ]; then
pager <<EOF
$text
EOF
fi