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Example: Using Regular Expressions

Filter messages that belong to the interactive-commands facility, directing those that include the string configure to the terminal of the root user:



[edit system syslog]
user root {
interactive-commands any;
match ".*configure.*";
}

Messages like the following appear on the root user’s terminal when a user issues a configure command to enter configuration mode:




timestamp router-name mgd[PID]: UI_CMDLINE_READ_LINE: User 'user', command 'configure private'

Filter messages that belong to the daemon facility and have severity error or higher, directing them to the file /var/log/process-errors. Omit messages generated by the SNMP process (snmpd), instead directing them to the file /var/log/snmpd-errors:



[edit system syslog]
file process-errors {
daemon error;
match "!(.*snmpd.*)";
}
file snmpd-errors {
daemon error;
match ".*snmpd.*";
}

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