.functions

function onport(){
  lsof -n -i4TCP:$1 | grep LISTEN
}


function tmuxhelp() {
   open "https://gist.github.com/henrik/1967800"
}

function weather() {
  curl -4 wttr.in
}

function killssh() {
  PATTERN=""
  if [ -n "$@" ]; then
    PATTERN="$@"
  fi
  ps aux | grep ssh | grep "$PATTERN" | grep -v grep | awk '{print $2}' | xargs kill -9
}

function pdf-to-black-and-white() {
  if [ "$1" == "" ]; then
    echo -e "USAGE: pdf-to-black-and-white input.pdf\nIt will write an output.pdf\n\n       pdf-to-black-and-white input.pdf out2.pdf\nit will an out2.pdf"
    return 1
  fi
  OUTPUT="$2"
  gs    -sOutputFile=${OUTPUT-output.pdf} \
        -sDEVICE=pdfwrite \
        -sColorConversionStrategy=Gray \
        -dProcessColorModel=/DeviceGray \
        -dCompatibilityLevel=1.4 \
        -dNOPAUSE \
        -dBATCH  \
        $1
}

function optim-image() {
  if [ "$1" == "" ]; then
    echo "output is missing";
    return -1;
  fi
  convert -strip -interlace Plane -quality 85% "$1" "$2"
}

function mkdirp {
  mkdir -p $1 && pushd $1
}


function concat() {
  ls *.{mp4,MP4,MOV,mov} 2>/dev/null | perl -ne 'print "file $_"' | ffmpeg -f concat -i - -c copy $1
}

function vudo() { eval "vagrant ssh -c \"cd /vagrant && $@\"" }