# 31 ------------------------------------------------------------------------ #
# Data to graph: summary of all open files                                    #
# Nagios plugin: check_open_files.pl -w 80 -c 90                              #
# Nagios output: ||OK: open files (2016) is below threshold (160000/180000)   #
#  Use perfdata: |open_files=2016;160000;180000                               #
# --------------------------------------------------------------------------- #
/output:.*: open files \((\d+)\) is below threshold .*/
and push @s, [ 'all_open_files', [ 'open_files',  GAUGE, $1 ] ];