12
Character Meaning
Examples
\bcharacter2
Matches
character1character2.
character1
can be any character
except number, letter or underline,
and \b equals [^A-Za-z0-9_].
"\ba" matches "-a" with "-" being
character1,
and
"a" being
character2,
but it does not match "2a" or
"ba"
.
\Bcharacter
Matches a string containing
character
, and no space is allowed
before
character.
"\Bt" matches "t" in "install", but not "t" in "big
top".
character1\w
Matches
character1character2.
character2
must be a number, letter,
or underline, and \
w
equals
[A-Za-z0-9_].
"v\w" matches "
vl
an" ("v" is
character1
and "l" is
character2
)
and "ser
vi
ce" ( "i" is
character2
)
.
\W Equals
\b.
"\Wa" matches "-a", with "-" being
character1,
and "a" being
character2, but does not
match "2a"
or "ba"
.
\
Escape character. If a special
character listed in this table follows
\, the specific meaning of the
character is removed.
"\\" matches a string containing "\", "\^" matches
a string containing "^", and "\\b" matches a string
containing "\b".
The following are several regular expression examples:
# Use
|
begin
user-interface
in the
display current-configuration
command to match the first line of
output that contains
user-interface
to the last line of output.
<Sysname> display current-configuration | begin user-interface
user-interface con 0
user-interface vty 0 4
authentication-mode none
user privilege level 3
#
return
# Use
| exclude Direct
in the
display ip routing-table
command to filter out direct routes and display only
the non-direct routes.
<Sysname> display ip routing-table | exclude Direct
Routing Tables: Public
Destination/Mask Proto Pre Cost NextHop Interface
1.1.1.0/24 Static 60 0 192.168.0.0 Vlan1
# Use
| include Vlan
in the
display ip routing-table
command to filter in route entries that contain
Vlan
.
<Sysname> display ip routing-table | include Vlan
Routing Tables: Public
Destination/Mask Proto Pre Cost NextHop Interface
192.168.1.0/24 Direct 0 0 192.168.1.42 Vlan999
