pnp4nagios extracting graphs

Bash script to extract graphs for previous month

#!/bin/bash
#
WDIR=/path/to/script
OUTDIR=$WDIR/output/monthly_graphs
mkdir -p $OUTDIR
INPFILE=$WDIR/month_graphs.txt
GRZIP=$WDIR/month_graphs.zip
#
# 1st day of last month
stime=$(date -d "`date +%Y%m01` -1 month" +%s)
# 1st day of this month
etime=$(date -d "`date +%Y%m01`" +%s)
#
while read HN DB; do
  GURL="http://localhost/pnp4nagios/image?host=${HN}&srv=${DB}&view=1&start=${stime}&end=${etime}"
  PNGF="$OUTDIR/graph_${HN}_${DB}.png"
  wget -O $PNGF -q --user=nagiosadmin --password=ENTERPASSWORD "$GURL"
done < $INPFILE
#
rm $GRZIP
zip -r -j -q $GRZIP $OUTDIR
echo "" | mutt -a $GRZIP -s monthtly_graphs -- someone@example.org
exit

File: month_graphs.txt

server1 CPU
server1 Memory
server2 CPU
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