2 2 15 Variable manipulation

Activity ID	Description
BLANKCONCAT	Concatenates one or more strings, removing trailing blanks and inserting a single blank between each string.
CALCULATE	Perform a simple arithmetic calculation.
CLEARLIST	Clears a variable list.
CLEARVARIABLE	Clears a variable.
CONCAT	Concatenates one or more strings, removing trailing blanks from each.
COUNTLIST	Counts the entries in a variable list.
FOR_EACH_VAR	Iterate for each processing sequence variable
LOAD_PSVSET	Load processing sequence variables from a PSV file.
LOGLIST	Creates entries in the processing sequence log that contain a variable list's values.
LOGVARIABLE	Creates an entry in the processing sequence log that contains a variable's value.
LOWERCASE	Converts uppercase characters to lowercase.
NEXTNUMBER	Generates the next number in a series.
PATHMAKE	Constructs a file path from folder path and file name.
PATHSPLIT	Splits a file path into its constituent components.
RANDOMNUMBER	Generates a pseudo-random number.
SAVE_PSVSET	Save processing sequence variables to a PSV file.
SORT_LISTS	Sort one or more variable lists in "parallel"
SUBSTITUTE	Formats an input string with variable substitution.
SUBSTITUTE_VAR	Formats an input string with variable substitution.
SUBSTRING	Extracts a portion of a string.
UNIQUEID	Generate a unique identifier.
UPPERCASE	Converts lowercase characters to uppercase.