Provided by: percona-toolkit_2.2.16-1_all 
NAME
pt-align - Align output from other tools to columns.
SYNOPSIS
Usage: pt-align [FILES]
pt-align aligns output from other tools to columns. If no FILES are specified, STDIN is read.
If a tool prints the following output,
DATABASE TABLE ROWS
foo bar 100
long_db_name table 1
another long_name 500
then pt-align reprints the output as,
DATABASE TABLE ROWS
foo bar 100
long_db_name table 1
another long_name 500
RISKS
Percona Toolkit is mature, proven in the real world, and well tested, but all database tools can pose a
risk to the system and the database server. Before using this tool, please:
• Read the tool's documentation
• Review the tool's known "BUGS"
• Test the tool on a non-production server
• Backup your production server and verify the backups
DESCRIPTION
pt-align reads lines and splits them into words. It counts how many words each line has, and if there is
one number that predominates, it assumes this is the number of words in each line. Then it discards all
lines that don't have that many words, and looks at the 2nd line that does. It assumes this is the first
non-header line. Based on whether each word looks numeric or not, it decides on column alignment.
Finally, it goes through and decides how wide each column should be, and then prints them out.
This is useful for things like aligning the output of vmstat or iostat so it is easier to read.
OPTIONS
This tool accepts additional command-line arguments. Refer to the "SYNOPSIS" and usage information for
details.
--help
Show help and exit.
--version
Show version and exit.
ENVIRONMENT
This tool does not use any environment variables.
SYSTEM REQUIREMENTS
You need Perl, and some core packages that ought to be installed in any reasonably new version of Perl.
BUGS
For a list of known bugs, see <http://www.percona.com/bugs/pt-align>. Please report bugs at <https://bugs.launchpad.net/percona-toolkit>. Include the following information in your bug report: • Complete command-line used to run the tool • Tool "--version" • MySQL version of all servers involved • Output from the tool including STDERR • Input files (log/dump/config files, etc.) If possible, include debugging output by running the tool with "PTDEBUG"; see "ENVIRONMENT".
DOWNLOADING
Visit <http://www.percona.com/software/percona-toolkit/> to download the latest release of Percona Toolkit. Or, get the latest release from the command line: wget percona.com/get/percona-toolkit.tar.gz wget percona.com/get/percona-toolkit.rpm wget percona.com/get/percona-toolkit.deb You can also get individual tools from the latest release: wget percona.com/get/TOOL Replace "TOOL" with the name of any tool.
AUTHORS
Baron Schwartz, Brian Fraser, and Daniel Nichter
ABOUT PERCONA TOOLKIT
This tool is part of Percona Toolkit, a collection of advanced command-line tools for MySQL developed by
Percona. Percona Toolkit was forked from two projects in June, 2011: Maatkit and Aspersa. Those
projects were created by Baron Schwartz and primarily developed by him and Daniel Nichter. Visit
<http://www.percona.com/software/> to learn about other free, open-source software from Percona.
COPYRIGHT, LICENSE, AND WARRANTY
This program is copyright 2011-2015 Percona LLC and/or its affiliates, 2010-2011 Baron Schwartz.
THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU
General Public License as published by the Free Software Foundation, version 2; OR the Perl Artistic
License. On UNIX and similar systems, you can issue `man perlgpl' or `man perlartistic' to read these
licenses.
You should have received a copy of the GNU General Public License along with this program; if not, write
to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
VERSION
pt-align 2.2.16