pt-align1p

Usage

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:

Overview

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.

--[no]buffer-stdout

default: yes

Enables STDOUT buffering. Disable this option if you want to see live progress when using output post-processing tools such as "tee" or "kubectl logs".

--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.

Attention

Using <PTDEBUG> might expose passwords. When debug is enabled, all command line parameters are shown in the output.

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.

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 2011-2026 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, version 2 along with this program; if not, see <https://www.gnu.org/licenses/>.

Version

pt-align 3.7.1-4