fix bug

[tee-unique] / teeu

diff --git a/teeu b/teeu
index 5be4b7688b3d14310a79efb5749e643cc3704027..9ff55ceba8efd696e1c20b3ca5b99be8afd1a35d 100755 (executable)
--- a/teeu
+++ b/teeu
@@ -8,7 +8,6 @@ teeu() {
 Tee unique. Append each LINE or if none, each stdin line to FILE if it does not exist in FILE.
 
   [-h|--help]  display this message"
-
     
     if [[ $1 == --help || $1 == -h ]]; then
         echo "$help"
@@ -20,11 +19,9 @@ Tee unique. Append each LINE or if none, each stdin line to FILE if it does not
         echo "$help"
         return 1
     fi
-    local file="$1"; shift
-
     local MAPFILE
-    mapfile -t
-    for line in "${@:-$MAPFILE[@]}"; do
+    (( ${#@} >= 2 )) && MAPFILE="${@:2}" || mapfile -t
+    for line in "${$MAPFILE[@]}"; do
         grep -xFq "$line" "$1" &>/dev/null || tee -a "$1" <<<"$line"
     done
     return 0