Time for an 2014 update…

Task/Variables/Batch-File/variables.bat

@@ -0,0 +1,16 @@
+@echo off
+
+::setting variables in defferent ways
+set myInt1=5
+set myString1=Rosetta Code
+set "myInt2=5"
+set "myString2=Rosetta Code"
+
+::Arithmetic
+set /a myInt1=%myInt1%+1
+set /a myInt2+=1
+set /a myInt3=myInt2+   5
+
+set myInt
+set myString
+pause>nul

Task/Variables/COBOL/variables-4.cobol

@@ -1,10 +1,4 @@
 *> Group data items do not have a picture clause.
-01  group-item. *> The 'implied' PIC for group-item is PIC X(20).
+01  group-item.
     03  sub-data          PIC X(10).
     03  more-sub-data     PIC X(10).
-
-*> Example use of FILLER.
-01  formatted-data.
-    03  part-one          PIC X(10).
-    03  FILLER            PIC X.
-    03  part-two          PIC X(10).

Task/Variables/COBOL/variables-5.cobol

@@ -6,6 +6,3 @@ WORKING-STORAGE SECTION.
 PROCEDURE DIVISION.
     DISPLAY initialized-data *> Shows 'Hello, World!'
     DISPLAY other-data       *> Will probably show 15 spaces.
-    ...
-    *> Sets initialized-data back to "Hello, World!" and fills other-data with spaces.
-    INITIALIZE initialized-data, other-data

Task/Variables/COBOL/variables-7.cobol

@@ -2,7 +2,5 @@ some-str (1:1)      *> Gets the first character from the string
 some-num (1:3)      *> Get the first three digits from the number
 another-string (5:) *> Get everything from the 5th character/digit onwards.
 
-*> To get a proper array slice, you must use reference modification on its parent data item:
-some-table-area (4:6) *> Get 6 characters from the array after from the 4th char onwards
 *> To reference modify an array element
 some-table (1) (5:1)  *> Get the 5th character from the 1st element in the table