IBM 4002-C4A, Инструкция по установке и эксплуатации

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Table 8. Special characters for regular expressions (continued)
Character Operation
+ The plus sign matches on one or more sequential instances of a pattern.
For example, the following regular expression matches output that contains
“de”, followed by a sequence of “g”s, such as “deg”, “degg”, “deggg”, and so
on:
deg+
? The question mark matches on zero occurrences or one occurrence of a
pattern.
For example, the following regular expression matches output that contains
“dg” or “deg”:
de?g
Note: Normally when you type a question mark, the CLI lists the commands
or options at that CLI level that begin with the character or string you entered.
However, if you enter Ctrl-V and then type a question mark, the question
mark is inserted into the command line, allowing you to use it as part of a
regular expression.
^ A caret (when not used within brackets) matches on the beginning of an input
string.
For example, the following regular expression matches output that begins
with “deg”:
^deg
$ A dollar sign matches on the end of an input string.
For example, the following regular expression matches output that ends with
“deg”:
deg$
_ An underscore matches on one or more of the following:
v , (comma)
v { (left curly brace)
v } (right curly brace)
v ( (left parenthesis)
v ) (right parenthesis)
v The beginning of the input string
v The end of the input string
v A blank space
For example, the following regular expression matches on “100” but not on
“1002”, “2100”, and so on:
_100_
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IBM Ethernet Switch c-series Installation and User Guide