IBM Tivoli NetView for z/OS Programming: Pipes - IBM notice

Streams
v If data is in the form variable1=variable2, all messages where variable1 does not
equal variable2
If no secondary output stream is defined, all messages are written unchanged to
the primary output stream.
Stream Type Number Supported
Input 1
Output 2
Termination Conditions
VARLOAD terminates when the input stream is disconnected or when all variables
are set and all defined output streams are disconnected.
Operand Descriptions
Usage Notes
PIPE VARLOAD
(COMMON)
Specifies variable1 is accessed from the common global variable dictionary
instead of the local variable dictionary.
(TASK)
Specifies variable1 is accessed from the task global variable dictionary instead
the local variable dictionary.
(number)
Specifies the number invocations (generations) to refer back to when accessing
variable1. The number of generations refers to the current nesting level within
the REXX, PL/I, or C calling sequence. ENVDATA can be used to determine
the number of generations.
(Number) must be zero (0) or greater and less than, or equal to, the existing
number of generations. If (number) is greater than (0), the variables are in a
generation preceding the current generation. The specified generation can
precede the generation from which the PIPE command is issued.
The default for (number) is zero (0).
v VARLOAD does not delay the stream.
v Variable1 and variable2 can be any valid REXX variable. (COMMON) and (TASK)
variables can be a maximum of 32 characters in length.
v VARLOAD translates variable names to uppercase. Stem variable names are
translated to uppercase up to the first period.
v VARLOAD does not substitute symbols in the stem of a variable name specified
as a compound symbol.
v To remove unwanted trailing blanks from input records before executing
VARLOAD, use STRIP with the TRAILING keyword prior to VARLOAD.
v All data after the second delimiter is assigned to the variable regardless of
intervening blanks or subsequent delimiters.
Chapter 2. Pipeline Stages and Syntax 255