NAME

       zeek-cut - parse Zeek logs

SYNOPSIS

       zeek-cut [options] [columns]

DESCRIPTION

       Extracts  the  given  columns  from ASCII Zeek logs on standard input, and outputs them to
       standard output.  If no field names are given, all are selected. By default, zeek-cut does
       not include format header blocks in the output.

       Columns  are specified as a list of space-separated field names.  The order of field names
       given to zeek-cut determines the output order, which means zeek-cut can be used to reorder
       columns.

       The  ASCII  Zeek logs read on standard input must have intact format header blocks because
       zeek-cut needs this information to correctly interpret the  log  file  format.   In  fact,
       zeek-cut  can  process  the  concatenation of multiple ASCII log files that have different
       column layouts.

OPTIONS

       -c     Include the first format header block in the output.

       -C     Include all format header blocks in the output.

       -d     Convert time values into human-readable format.

       -D <fmt> Like -d, but specify format for time (see strftime(3) for syntax).

       -F <ofs> Sets a different output field separator character.

       -h     Show help.

       -n     Print all fields except those specified.

       -u     Like -d, but print timestamps in UTC instead of local time.

       -U <fmt> Like -D, but print timestamps in UTC instead of local time.

ENVIRONMENT

       ZEEK_CUT_TIMEFMT
              For time conversion option -d or -u, the format string can be specified by  setting
              this environment variable.

EXAMPLES

       Output three columns and convert time values:
       cat conn.log | zeek-cut -d ts id.orig_h id.orig_p

       Output all columns and convert time values with a custom format string:
       cat conn.log | zeek-cut -D "%Y-%m-%d %H:%M:%S"

       Compressed logs must be uncompressed with another utility:
       zcat conn.log.gz | zeek-cut

SEE ALSO

       strftime(3)

AUTHOR

       zeek-cut was written by The Zeek Project <info@zeek.org>.