#!/bin/bash
#Arguments
CMD=$2
CACHE_TIME=$1

#Constants
TMPDIR="/tmp/cache"

[ -d "$TMPDIR" ] || mkdir -p "$TMPDIR"

HASH=$(echo "$CMD" | base64)
CACHE_FILE="$TMPDIR/$HASH"

if [ -f "$CACHE_FILE" ]; then
    CACHE_AGE=$[ $(date +"%s") - $(stat -c "%Y" "$CACHE_FILE") ]
    if [ $CACHE_AGE -lt $CACHE_TIME ]; then
        cat "$CACHE_FILE"
    else
        $CMD | tee "$CACHE_FILE"
    fi
else
    $CMD | tee "$CACHE_FILE"
fi