Initial addition of hgrep and lgrep scripts from http://dev.haiku-os.org/ticket/3376

TODO make use of finddir where useful, perhaps nicer usage displays.

sys-apps/hgrep/hgrep

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+#
+# Copyright 2011, Haiku, Inc. All Rights Reserved.
+# Distributed under the terms of the MIT License.
+#
+
+find $(finddir B_COMMON_DEVEOP_DIRECTORY/headers -type f -print0 | xargs -0 egrep "$@"
+
+# TODO add other header directories to search?

sys-apps/lgrep/lgrep

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+#
+# Copyright 2011, Haiku, Inc. All Rights Reserved.
+# Distributed under the terms of the MIT License.
+#
+
+usage() {
+	echo `basename $0` \[-V\] \<symbol\>
+	echo \- list files containing \<symbol\>
+	echo "  -V lists also directories searched"
+	echo ""
+	echo `basename $0` -h
+	echo \- Show this help
+	exit 0
+}
+
+if [ "$1" == "-V" ]; then
+	VERBOSE=1
+	shift
+else
+	VERBOSE=0
+fi
+
+if [ "$1" == "-h" ]; then
+	usage
+fi
+
+if [ "x$1" == "x" ]; then
+	usage
+fi
+
+LPATH=`echo $LIBRARY_PATH|sed "s|%A/lib:||"`
+[ -d ./lib ] && LPATH="./lib:$LPATH" || true
+LPATH=`echo $LPATH|sed "s/:/ /g"`
+TEMPFILE=/boot/var/tmp/`basename $0`.$PPID
+for libdir in `echo $LPATH`; do
+	if [ "$VERBOSE" == "1" ]; then
+		echo Searching in \"$libdir\"...
+	fi
+	for lib in $libdir/*.so ; do
+		echo "[ $lib ]" > $TEMPFILE
+		(nm -D $lib 2>/dev/null)|grep $1 >> $TEMPFILE
+		LINES=`wc -l $TEMPFILE | awk '{ print $1; }'`
+		if [ "$LINES" != "1" ]; then 
+		 	cat $TEMPFILE
+		fi
+	done
+done
+rm -f $TEMPFILE