[monitoring-plugins] Add -a option to print all matching lines and -p ...

[rincewind]

 Module: monitoring-plugins
 Branch: master
 Commit: 53b77dee91f780b4d78839f881c642189b829e3c
 Author: rincewind <rincewind at vulgrim.de>
   Date: Fri Jul  2 18:38:12 2021 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=53b77de

Add -a option to print all matching lines and -p and -e options for perl and extended RE

---

 plugins-scripts/check_log.sh | 51 ++++++++++++++++++++++++++++++++------------
 1 file changed, 37 insertions(+), 14 deletions(-)

diff --git a/plugins-scripts/check_log.sh b/plugins-scripts/check_log.sh
index 6e9fbca..8af07b5 100755
--- a/plugins-scripts/check_log.sh
+++ b/plugins-scripts/check_log.sh
@@ -69,6 +69,11 @@ print_usage() {
     echo "Usage: $PROGNAME -F logfile -O oldlog -q query"
     echo "Usage: $PROGNAME --help"
     echo "Usage: $PROGNAME --version"
+	echo ""
+	echo "Other parameters:"
+	echo "	-a|--all : Print all matching lines"
+	echo "	-p|--perl-regex : Use perl style regular expressions in the query"
+	echo "	-e|--extended-regex : Use extended style regular expressions in the query (not necessary for GNU grep)"
 }
 
 print_help() {
@@ -115,35 +120,35 @@ while test -n "$1"; do
             ;;
         --filename)
             logfile=$2
-            shift
+            shift 2
             ;;
         -F)
             logfile=$2
-            shift
+            shift 2
             ;;
         --oldlog)
             oldlog=$2
-            shift
+            shift 2
             ;;
         -O)
             oldlog=$2
-            shift
+            shift 2
             ;;
         --query)
             query=$2
-            shift
+            shift 2
             ;;
         -q)
             query=$2
-            shift
+            shift 2
             ;;
         -x)
             exitstatus=$2
-            shift
+            shift 2
             ;;
         --exitstatus)
             exitstatus=$2
-            shift
+            shift 2
             ;;
         --extended-regex)
             ERE=1
@@ -161,13 +166,20 @@ while test -n "$1"; do
             PRE=1
             shift
             ;;
+        --all)
+            ALL=1
+            shift
+            ;;
+        -a)
+            ALL=1
+            shift
+            ;;
         *)
             echo "Unknown argument: $1"
             print_usage
             exit "$STATE_UNKNOWN"
             ;;
     esac
-    shift
 done
 
 # Parameter sanity check
@@ -176,6 +188,8 @@ if [ $ERE ] && [ $PRE ] ; then
 	exit "$STATE_UNKNOWN"
 fi
 
+GREP="grep"
+
 if [ $ERE ]; then
 	GREP="grep -E"
 fi
@@ -219,11 +233,20 @@ fi
 
 diff "$logfile" "$oldlog" | grep -v "^>" > "$tempdiff"
 
-# Count the number of matching log entries we have
-count=$($GREP -c "$query" "$tempdiff")
+if [ $ALL ]; then
+	# Get the last matching entry in the diff file
+	entry=$($GREP "$query" "$tempdiff")
 
-# Get the last matching entry in the diff file
-lastentry=$($GREP "$query" "$tempdiff" | tail -1)
+	# Count the number of matching log entries we have
+	count=$(echo "$entry" | wc -l)
+
+else
+	# Count the number of matching log entries we have
+	count=$($GREP -c "$query" "$tempdiff")
+
+	# Get the last matching entry in the diff file
+	entry=$($GREP "$query" "$tempdiff" | tail -1)
+fi
 
 rm -f "$tempdiff"
 cat "$logfile" > "$oldlog"
@@ -232,7 +255,7 @@ if [ "$count" = "0" ]; then # no matches, exit with no error
     echo "Log check ok - 0 pattern matches found"
     exitstatus=$STATE_OK
 else # Print total matche count and the last entry we found
-    echo "($count) $lastentry"
+    echo "($count) $entry"
     exitstatus=$STATE_CRITICAL
 fi