showlog: New command to list logfiles with simple options (targeted at local admins).

1 files changed, 85 insertions, 0 deletions

diff --git a/showlog b/showlog
new file mode 100755
index 0000000..a6d57a0
--- /dev/null
+++ b/showlog
@@ -0,0 +1,85 @@
+#!/bin/bash
+# /usr/local/sbin/showlog: Show topic-specific log entries
+# Written by Jonas Smedegaard <dr@jones.dk>
+
+# halt on errors (NB! this is a bashism...)
+set -e
+
+function usage()	{
+	echo "Usage: $(basename $0) ftp|web|weberror|mail [<keyword> [<keyword>...]]"
+	exit 1
+}
+
+function exit1()	{
+	echo "Error: $1"
+	echo "Exiting..."
+	exit 1
+}
+
+target=$1
+
+case "$target" in
+    ftp|web|weberror|mail)
+	;;
+    *)
+	usage
+	;;
+esac
+
+shift
+
+logroot="/var/log"
+tail_history="100"
+
+function cat_logs()	{
+	logroot=$1
+	shift
+	for pattern in $@; do
+		for file in `find $logroot -name "$pattern" -type f -mindepth 1 -maxdepth 1 -follow | sort`; do
+			case $pattern in
+			    *.gz)
+				zcat $file;;
+			    *.bz2)
+				bzcat $file;;
+			    *)
+				cat $file;;
+			esac
+		done
+	done
+}
+
+LOCALCONFIG=/etc/local/showlog.conf
+. $LOCALCONFIG || exit1 "Unable to read local config file $LOCALCONFIG"
+
+case "$target" in
+    ftp)
+	log="xferlog"
+	logs="$log.??.gz $log.?.gz $log.? $log"
+	;;
+    web)
+	logroot="/var/log/apache"
+	log="access.log"
+	logs="$log.??.gz $log.?.gz $log.? $log"
+	;;
+    weberror)
+	logroot="/var/log/apache"
+	log="error.log"
+	logs="$log.??.gz $log.?.gz $log.? $log"
+	;;
+    mail)
+	log="mail.log"
+	logs="$log.??.gz $log.?.gz $log.? $log"
+	;;
+esac
+
+if [ $# \> 0 ]; then
+	grep_opts=""
+	for keyword in $@; do
+		grep_opts="$opts -e $keyword"
+	done
+	cat_logs $logroot $logs | grep -i $grep_opts | tail -n $tail_history
+	[ -f $logroot/$log ] && tail -n 0 -f $logroot/$log | grep -i $grep_opts
+else
+	cat_logs $logroot $logs | tail -n $tail_history
+	[ -f $logroot/$log ] && tail -n 0 -f $logroot/$log
+fi