Lograptor
Command-Line search tool for syslog files
Lograptor is a search tool for system logs written in legacy BSD syslog
format RFC 3164 and for IETF syslog protocol RFC 5424.
The program can perform searches in syslog files like as the UNIX command
"grep", but with the addition of some filters and parameters, useful to
restrict the search field and retrieve the relevant informations from log
files. You could specify parameters like hostname, application, date,
time range, plus a set of filters on message data.