The
exigrep utility is a Perl script that searches one or more main log files for
entries that match a given pattern.
When it finds a match, it extracts all the log entries for the relevant
message, not just those that match the pattern.
Thus,
exigrep can extract complete log entries for a given message, or all mail for a given
user, or for a given host, for example.
The
-l flag means (oqliteral(cq, that is, treat all characters in the pattern as
standing for themselves.
Otherwise the pattern must be a Perl regular expression.
The pattern match is case-insensitive.
If no file names are given on the command line, the standard input is
read.
If the location of a
zcat command is known from the definition of ZCAT_COMMAND in Local/Makefile,
exigrep automatically passes any file whose
name ends in COMPRESS_SUFFIX through
zcat as it searches it.
This manual page was stitched together from spec.txt by
Andreas Metzler <ametzler at downhill.at.eu.org>,
for the Debian GNU/Linux system (but may be used by others).
