timecap() mod

.bashlib_timecap

# Derives from Fielding's dotfiles repo
# https://github.com/justfielding/dotfiles
timecap () {
  filenumber=${1:-1}
  delay=${2:-5}
  scdir=${3:-./}
  date_bin=$(which date)
  screencap_bin="$(which screencapture)"
  i=$filenumber
  while [ 1 ]

    do $screencap_bin -t jpg -x ${scdir}${i}_${timestamp}.jpg
      timestamp="$($date_bin +%y-%m-%d_%s)"
      echo "Capturing to ${i}_${timestamp}.jpg"
      let i++
      sleep $delay
    done
}