x: eXamine files/dirs using the right tool

x

#!/bin/bash

set -euo pipefail

if [[ $# -eq 0 ]]; then
    args=(".")
else
    args=("$@")
fi

for f in "${args[@]}"; do
    if [[ -d "$f" ]]; then
        ls -lAF --color=auto "$f"
    else
        len=($(wc -cl "$f" | sed -e 's/^ *//' -e 's/   */ /' | cut -d' ' -f1-2)) || continue
        lines=$(tput lines)
        if [[ "$(file -b -L --mime-encoding "$f")" == "binary" ]]; then
            if [[ $((${len[1]}/16)) -ge $lines ]]; then
                xxd "$f" | less
            else
                xxd "$f"
            fi
        else
            if [[ ${len[0]} -ge $(($lines - 1)) ]]; then
                less "$f"
            else
                cat "$f"
            fi
        fi
    fi
done