#!/usr/bin/env bash
SARDIR=/var/log/sysstat
if [ -d /var/log/sa ]; then
	SARDIR=/var/log/sa
fi
echo "Date CPUUsed MEMUsed IOWait"  > /tmp/sar-report.txt
for f in $(ls $SARDIR/sa[0123]*); do
SARDate=$(stat $f | grep Modify | awk '{print $2}')
CPUUsed=$(sar -f $f | tail -1 | awk '{print 100-$NF}')
MEMUsed=$(sar -r -f $f | tail -1 | grep -Eo '[0-9]+\.[0-9]+' | head -1)
IOWait=$(sar -f $f | tail -1 | awk '{print $6}')
echo "$SARDate $CPUUsed $MEMUsed $IOWait" >> /tmp/sar-report.txt
done
cat /tmp/sar-report.txt | column -t
rm -f /tmp/sar-report.txt