--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -178,1 +178,1 @@ 
-	 fgrep "`cat ${tmp}/world`" | \
---
+	 fgrep -f ${tmp}/world | \
@@ -181,0 +181,4 @@ 
+find /usr/portage/ -iname '*.ebuild' | \
+	cut -f4,6 -d/ | \
+	sed -e s:\.ebuild:xxx: > ${tmp}/portage
+
@@ -182,3 +186,2 @@ 
-	fgrep "`find /usr/portage/ -iname '*.ebuild'|cut -f4,6 -d/ | \
-		sed -e s:\\.ebuild:xxx:`" | \
-		sed -e "s:^:\\\=:" -e "s:xxx::" > ${tmp}/world.new
---
+	fgrep -f ${tmp}/portage | \
+	sed -e "s:^:\\=:" -e "s:xxx::" > ${tmp}/world.new
@@ -255,2 +258,1 @@ 
-		fgrep -v "`find /usr/portage/ -iname '*.ebuild'|cut -f4,6 -d/ | \
-			sed -e s:\\\.ebuild:xxx:`" | \
---
+		fgrep -v -f ${tmp}/portage | \