shell function to quickly check a graphite graph

graphline.sh

#
# shell function to print graphite graphs as sparklines in the terminal
# needs https://github.com/holman/spark
#
function graphline() {
  GRAPHITEHOST="graphite.example.com"
  if [ ! -n "$1" ]; then print "Usage: $0 metric [minutes]"; return 1; fi
  if [ ! -n "$2" ]; then MINUTES=10 ; else MINUTES=$2; fi
  curl -s "${GRAPHITEHOST}/render?from=-${MINUTES}minutes&target=${1}&format=raw" | cut -d"|" -f 2 | spark ;
}