Copy nfsstats script from main repo.

Send PR to remove scripts from the main repo.

agent-local/nfsstats

@@ -0,0 +1,28 @@
+#!/bin/bash
+#############################################################
+# - put this file on the nfs server somewhere like /opt/    #
+# - edit your snmpd.conf and add line                       #
+#  extend nfsstat /opt/nfsstats.sh                          #
+# - restart snmpd                                           #
+# - make sure that you have all the binaries required below #
+#############################################################
+
+CFG_NFSVER='3'
+BIN_NFSSTAT='/usr/sbin/nfsstat'
+BIN_TR='/usr/bin/tr'
+BIN_CUT='/usr/bin/cut'
+BIN_GREP='/usr/bin/grep'
+BIN_PASTE='/usr/bin/paste'
+BIN_RM='/usr/bin/rm'
+BIN_MV='/usr/bin/mv'
+LOG_OLD='/tmp/nfsstats_old'
+LOG_NEW='/tmp/nfsstats_new'
+
+$BIN_NFSSTAT -$CFG_NFSVER -n -l | $BIN_TR -s " " | $BIN_CUT -d ' ' -f 5 | $BIN_GREP -v '^$' > $LOG_NEW 2>&1
+
+$BIN_PASTE $LOG_NEW $LOG_OLD | while read a b ; do
+  echo $(($a - $b))  
+done
+
+$BIN_RM $LOG_OLD 2>&1
+$BIN_MV $LOG_NEW $LOG_OLD 2>&1