/ tr+1 ➔ rot()

rot +/- 1,5,8

dots/bash/.bashrc

@@ -349,13 +349,26 @@ gpxImporter() {
     cd -
 }
 
-tr+1() {
+rot() {
-    echo "$1" | tr 'a-z' 'b-za'
+    if [[ -n $1 ]] && [[ -n $2 ]] ; then
+        if [[ $1 == "1" ]] ; then
+            echo "$2" | tr 'a-z' 'b-za'
+        elif [[ $1 == "-1" ]] ; then
+             echo "$2" | tr 'b-za' 'a-z'
+        elif [[ $1 == "5" ]] ; then
+             echo "$2" | tr 'a-z' 'f-zabcde'
+        elif [[ $1 == "-5" ]] ; then
+             echo "$2" | tr 'f-zabcde' 'a-z'
+        elif [[ $1 == "8" ]] ; then
+             echo "$2" | tr 'a-z' 'i-zabcdefgh'
+        elif [[ $1 == "-8" ]] ; then
+             echo "$2" | tr 'i-zabcdefgh' 'a-z'
+        fi
+    fi
 }
 
-tr-1() {
+#echo "frode" | tr 'a-z' 'i-zabcdefgh'
-    echo "$1" | tr 'b-za' 'a-z'
+
-}
 
 
 # ---