Alcatel-Lucent AOS-W 6.5.3.x - Page 1068

That command uses the syntax: s/pattern_to_match/pattern_to_substitute.
Operator Description Sample Result
^ Match at the beginning of a
line
s/^/blah/ Inserts “blah” at the beginning
of the line
$ Match at the end of a line s/$/blah/ Inserts “blah” at the end of the
line
\< Match at the beginning of a
word
s/\</blah/ Inserts “blah” at the beginning
of the word
egrep “\<blah”
sample.txt
Matches blahfield, etc.
\> Match at the end of a word s/\>/blah/ Inserts “blah” at the end of the
word
egrep “\>blah”
sample.txt
Matches soupblah, etc.
\b Match at the beginning or end
of a word
egrep “\bblah”
sample.txt
Matches blahcake and
countblah
\B Match in the middle of a word egrep “\Bblah”
sample.txt
Matches sublahper, etc.
Table 261: Regular expression anchors
References
This implementation is based, in part, on the following resources:
n Lonvick, C., “The BSD syslog Protocol”, RFC3164, August 2001
n Regular expression (regex) reference: http://en.wikipedia.org/wiki/Regular_expression
n Regex syntax summary: http://www.greenend.org.uk/rjk/2002/06/regexp.html
n Basic regular expression (BRE) syntax: http://builder.com.com/5100-6372-1050915.html
AOS-W 6.5.3.x | User Guide External Services Interface | 1068