NAME

       vnl-tail - tail a log file, preserving the legend

SYNOPSIS

        $ read_temperature | tee temp.vnl
        # temperature
        29.5
        30.4
        28.3
        22.1
        ... continually produces data

        ... at the same time, in another terminal
        $ vnl-tail -f temp.vnl
        # temperature
        28.3
        22.1
        ... outputs data as it comes in

DESCRIPTION

         Usage: vnl-tail [options] logfile logfile logfile ... < logfile

       This tool runs "tail" on given vnlog files in various ways. "vnl-tail" is a wrapper around the GNU
       coreutils "tail" tool. Since this is a wrapper, most commandline options and behaviors of the "tail" tool
       are present; consult the tail(1) manpage for detail. The differences from GNU coreutils "tail" are

       •   The input and output to this tool are vnlog files, complete with a legend

       •   "-c" is not supported because vnlog really doesn't want to break up lines

       •   "--zero-terminated" is not supported because vnlog assumes newline-separated records

       Past that, everything "tail" does is supported, so see that man page for detailed documentation.

BUGS

       This  and  the  other "vnl-xxx" tools that wrap coreutils are written specifically to work with the Linux
       kernel and the GNU coreutils. None of these have been tested with BSD tools or  with  non-Linux  kernels,
       and  I'm  sure  things don't just work. It's probably not too effortful to get that running, but somebody
       needs to at least bug me for that. Or better yet, send me nice patches :)

SEE ALSO

       tail(1)

REPOSITORY

       https://github.com/dkogan/vnlog/

AUTHOR

       Dima Kogan "<dima@secretsauce.net>"

LICENSE AND COPYRIGHT

       Copyright 2018 Dima Kogan "<dima@secretsauce.net>"

       This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
       General Public License as published by the Free Software Foundation; either version 2.1 of  the  License,
       or (at your option) any later version.

                                                   2020-02-04                                        VNL-TAIL(1)