Added blood pressure logging script

bp

@@ -0,0 +1,32 @@
+#!/usr/bin/env sh
+
+log=${HOME}/bloodpressure_log.csv
+timezone=America/Chicago
+
+#Sanity check
+# Log sanity
+if [ ! -f $log ]; then
+    echo "Date/Time,Systolic,Diastolic,Pulse,Comment" > $log
+elif ! (head -n 1 $log | grep -E '^Date' >/dev/null 2>&1); then
+    sed -i '1 i\Date/Time,Systolic,Diastolic,Pulse,Comment' $log
+fi
+# Syntax sanity
+if [ $# -eq 0 ]; then
+    column -s, -t < $log
+    exit 0
+fi
+if [ $# -lt 3 ]; then
+    echo Wrong number of arguments\! >&2
+    echo "Usage: bp [systolic] [diastolic] [pulse] <comment>" >&2
+    exit 1
+fi
+#End sanity check
+
+sys=$1
+dia=$2
+pulse=$3
+comment=$4
+
+echo Logged to $log\:
+echo $(TZ=$timezone date +%Y-%m-%d\ %H\:%M),${sys},${dia},${pulse},${comment} >> $log && sed -n '1p;$p' $log | column -s, -t && exit 0
+