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.\" ========================================================================
.\"
.IX Title "ASQL 8"
.TH ASQL 8 "2022-04-14" "perl v5.34.0" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
asql \- Provide an SQL interface to Apache logfiles.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  asql [options]
\&
\&  General Options:
\&
\&   \-\-help       Show brief help intstructions.
\&   \-\-manual     Show more complete help.
\&   \-\-version    Show the version of the software.
\&
\&  Scripting Options:
\&
\&   \-\-load       Load the named file, or glob.
\&   \-\-execute    Execute a single query then exit.
\&
\&  Options:
\&
\&   \-\-file       Rather than running as a shell read commands from a named file.
\&   \-\-quiet      Don\*(Aqt show the banner at startup.
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.Vb 2
\&  asql provides a simple console interface to allow a user to
\& query the contents of an Apache logfile via an SQL interface.
\&
\&  The shell features include:
.Ve
.IP "Persistent alias definitions." 8
.IX Item "Persistent alias definitions."
.PD 0
.IP "Command line completion" 8
.IX Item "Command line completion"
.IP "Command history" 8
.IX Item "Command history"
.IP "Simple scriptability" 8
.IX Item "Simple scriptability"
.PD
.SH "INTRODUCTION"
.IX Header "INTRODUCTION"
.Vb 3
\&  The asql shell will create a temporary SQLite database based upon
\& any number of Apache logfiles.  This temporary database may then
\& be interactively queried using common SQL syntax.
\&
\&  To get started you should load your logfiles into the database:
.Ve
.PP
.Vb 1
\&   load /var/log/apache2/acces*
.Ve
.PP
.Vb 2
\&  (The tool will automatically decompress files which have been
\& compressed with gzip or bzip2.)
\&
\&  Once you\*(Aqve loaded at least one file you may run queries, for
\& example:
.Ve
.PP
.Vb 1
\&  SELECT source,SUM(size) AS Number FROM logs GROUP BY source ORDER BY Number DESC, ip
.Ve
.PP
.Vb 2
\&  This example shows all the clients connecting to your webserver
\& and the size of files/requests that they have downloaded in total.
\&
\&  As you can see we\*(Aqve selected two columns "source" and "SUM(size)".
\& To see which other columns are available you may execute the "show"
\& command.
\&
\&  Because parsing the Apache logfile(s) specified might be quite
\& slow there is the option of dumping the temporary SQLite database
\& to a known filename with the \*(Aqsave\*(Aq command.  The analog to the
\& save command is the \*(Aqrestore\*(Aq command, which will read in an
\& existing SQLite database and allow future queries to be executed
\& against it.
.Ve
.SH "FILES"
.IX Header "FILES"
.Vb 3
\& When the shell starts up it will read and intepret the initialisation
\& file of ~/.asqlrc if it exists.  Any commands present in that file
\& will be executed prior to the launch of the interactive session.
\&
\& All aliases will be read and written to the file ~/.asql.aliases.
\&
\& All interactive history will be written to the file ~/.asql.
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
.Vb 3
\& Steve
\& \-\-
\& http://www.steve.org.uk/
.Ve
.SH "LICENSE"
.IX Header "LICENSE"
Copyright (c) 2007,2008,2009,2010 by Steve Kemp.  All rights reserved.
.PP
This module is free software;
you can redistribute it and/or modify it under
the same terms as Perl itself.
The \s-1LICENSE\s0 file contains the full text of the license.
.SH "AUTHOR"
.IX Header "AUTHOR"
.Vb 3
\& Steve
\& \-\-
\& http://www.steve.org.uk/
.Ve
.SH "LICENSE"
.IX Header "LICENSE"
Copyright (c) 2007\-2020 by Steve Kemp.  All rights reserved.
.PP
This module is free software;
you can redistribute it and/or modify it under
the same terms as Perl itself.
The \s-1LICENSE\s0 file contains the full text of the license.