Several System Debug commands apply the concept of pattern matching. Commands
such as CMDLIST, ENVLIST, FUNCLIST, MACLIST, PROCLIST, SYMLIST, and
VARLIST support pattern matching in order to select which commands,
functions, macro names, procedure names, symbol names, or variables are to be
displayed.
Regular expressions are used to find or match some specified text within a
large amount of surrounding text. A typical example is to find all lines in
a file that contain the word "computer."
In a similar manner, the FILTER environment variable is used to
selectively filter all System Debug output, displaying only those lines that
match the pattern or regular expression.
A regular expression can be a single character, like the letter "c" or a more
elaborate construct built up from simple things like the string "computer".
SAT Functions and Commands
Literal Expressions (Match Exactly These Characters)
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