дифф файлов со слегонца отличающимся форматированием

[ megabaks@desktop ] ~ $ diff -sbwu test_space test_tab 
Files test_space and test_tab are identical
[ megabaks@desktop ] ~ $ cat test_*
echo ololo
echo	ololo
[ megabaks@desktop ] ~ $

-s, --report-identical-files  report when two files are the same

git diff -bw

[ megabaks@desktop ] ~ $ diff -sbw portconf/portconf portconf/portconf-tab 
Files portconf/portconf and portconf/portconf-tab are identical
[ megabaks@desktop ] ~ $ diff -Nau0 portconf/portconf portconf/portconf-tab 
--- portconf/portconf	2013-04-08 01:19:03.000000000 +0400
+++ portconf/portconf-tab	2013-04-10 18:22:54.000000000 +0400
@@ -34 +34 @@
-		uses="$(echo -e ${uses} | tr "[:space:]" $'\n' | grep -v "^${opt#-}$" | grep -v "^\-${opt#-}$" | tr $'\n' " ")"
+												uses="$(echo -e ${uses} | tr "[:space:]" $'\n' | grep -v "^${opt#-}$" | grep -v "^\-${opt#-}$" | tr $'\n' " ")"
@@ -39 +39 @@
-	unset uses
+									unset uses
@@ -47 +47 @@
-	use="$USE"
+						use="$USE"
@@ -56 +56 @@
-[[ -h "/etc/make.profile" ]] && pre_profile="$(profile `readlink /etc/make.profile | sed -e 's|\.\.||'`)"
+[[ -h 						"/etc/make.profile" ]] && pre_profile="$(profile `readlink /etc/make.profile | sed -e 's|\.\.||'`)"
@@ -63 +63 @@
-	for target in `eselect --brief profile list`;do
+						for target in `eselect --brief profile list`;do
@@ -67 +67 @@
-		unset USEs
+							unset USEs
@@ -75 +75 @@
-		profile_uses="$(profile "/usr/portage/profiles/${target}")"
+						profile_uses="$(profile "/usr/portage/profiles/${target}")"
[ megabaks@desktop ] ~ $ wc -l portconf/portconf
1664 portconf/portconf
[ megabaks@desktop ] ~ $ wc -w portconf/portconf
6588 portconf/portconf
[ megabaks@desktop ] ~ $