Removes a specified number of characters from the beginning or end of the pipeline reference, depending on which keyword is present (START or END). If the keyword is not present, the system defaults to END.
There are two modes of operation. If a number is set, the command defines the number of characters that the command strips from all pipeline references. Alternatively if you supply a string, the command only strips characters if they match the string. In the following example, one character is removed from the end of the pipeline reference:
TRUNCATE-PIPELINE-REFERENCE END 1
Alternatively, the syntax in the following example removes the two characters, AB, from the start of the pipeline reference, presuming that the first two characters of the -6 record are AB:
TRUNCATE-PIPELINE-REFERENCE START 'AB'