I'm looking for a way to get sadf (from sysstat package) to generate me the csv version of the collected data by sar of the current day.
I know that sar keeps it's configuration in /etc/sysstat/sysstat where it has it's SA_DIR specified. In my case (Ubuntu 16.04 LTS) it shows:
SA_DIR=/var/log/sysstat
I would like to get this value and use it for the sadf command like:
# instead of the hard coded path...
sadf -d /var/log/sysstat/sa$(date +%d -d yesterday)
# ... I would like something like this with a SA_DIR variable
sadf -d $SA_DIR/sa$(date +%d -d today)
How can I get the SA_DIR form the sar configuration file?
With @steve 's solution I ended up using sadf like this:
# Generate CSV's
. /etc/sysstat/sysstat
sadf -d $SA_DIR/sa$(date +%d -d today) -- -r > memory_`date +%Y-%m-%d_%H-%M-%S`.csv # Memory statistics
sadf -d $SA_DIR/sa$(date +%d -d today) -- -n DEV > network_`date +%Y-%m-%d_%H-%M-%S`.csv # Network statistics
sadf -d $SA_DIR/sa$(date +%d -d today) -- -u > cpu_`date +%Y-%m-%d_%H-%M-%S`.csv # CPU statistics