#!/bin/sh
# Preview files & dirs
file="$1"

# If directory, list contents
[ -d "$file" ] && (cd "$file" && /usr/bin/ls -A1Fx --color --group-directories-first)

case $file in
    *.csv) column -s, -t < "$file" ;;
    *.html) links -dump "$file" ;;
    *) ! [ -d "$file" ] && head -n 47 "$file" && printf "\n\n  ..." ;;
esac