2ff: make it more portable

Thanks Roberto and Evan Gates!

1 files changed, 2 insertions, 2 deletions

diff --git a/2ff b/2ff
index 1b61cef..9a252a9 100755
--- a/2ff
+++ b/2ff
@@ -7,8 +7,8 @@ fi
 TMP=$(mktemp)
 cat > "$TMP"
 
-if [ "$(head -c 8 "$TMP")" = "farbfeld" ]; then
-	cat < "$TMP"
+if [ "$(dd if="$TMP" bs=1 count=8 2>/dev/null)" = "farbfeld" ]; then
+	cat "$TMP"
 	exit 0
 fi