HPE FlexNetwork 5510 HI Series - Filtering the Output from a Display Command

10
<Sysname> display clock | by-linenum
1: 06:14:21 UTC Sat 01/01/2011
Filtering the output from a display command
You can use the | { begin | exclude | include } regular-expression option to filter the display
command output.
•
begin—Displays the first line matching the specified regular expression and all subsequent
lines.
•
exclude—Displays all lines not matching the specified regular expression.
•
include—Displays all lines matching the specified regular expression.
•
regular-expression—A case-sensitive string of 1 to 256 characters, which can contain the
special characters described in
Table 6.
The required filtering time increases with the complexity of the regular expression. To abort the
filtering process, press Ctrl+C.
Table 6 Special characters supported in a regular expression
Characters
Meaning
Examples
^ Matches the beginning of a line.
"^u" matches all lines beginning with "u". A line
beginning with "Au" is not matched.
$ Matches the end of a line.
"u$" matches all lines ending with "u".
A line
ending with "uA" is not matched.
. (period) Matches any single character. ".s" matches "as" and "bs".
*
Matches the preceding
character or
string zero, one, or multiple times.
"zo*" matches "z" and "zoo", and "(zo)*" matches
"zo" and "zozo".
+
Matches the preceding
character or
string one or multiple times.
"zo+" matches "zo" and "zoo", but not "z".
|
Matches the preceding or succeeding
string.
"def|int" matches a line containing "def" or "int".
( )
Matches the string in the
parentheses, usually used together
with the plus sign (+) or asterisk sign
(*).
"(123A)" matches "123A".
"408(12)+" matches "40812" and "408121212",
but not "408".
\N
Matches the preceding strings in
parentheses, with the Nth string
repeated once.
"(string)\1
" matches a string containing
"stringstring".
"(string1)(string2)\2" matches a string containing
"string1string2string2".
"(string1)(string2)\1\2
" matches a string
containing " string1string2string1string2".
[ ]
Matches
a single character in the
brackets.
"[16A]" matches a string containing 1, 6, or A;
"[1-36A]" matches a string containing 1, 2, 3, 6, or
A (- is a hyphen).
To match the character "]", put it immediately after
"[", for example, []abc]. There is no such limit on
"[".
[^]
Matches a single character that is not
in the brackets.
"[^16A]"
matches a string that contains one or
more characters except for 1, 6, or A, such as
"abc". A match can also contain 1, 6, or A (such
as "m16"), but it cannot
contain these three
characters only (such as 1, 16, or 16A).