SYNOPSISUsage: 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
RISKSPercona 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
DESCRIPTIONpt-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.
OPTIONSThis tool accepts additional command-line arguments. Refer to the ``SYNOPSIS'' and usage information for details.
- Show help and exit.
- Show version and exit.
ENVIRONMENTThis tool does not use any environment variables.
SYSTEM REQUIREMENTSYou need Perl, and some core packages that ought to be installed in any reasonably new version of Perl.
BUGSFor 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''.
DOWNLOADINGVisit <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:
Replace "TOOL" with the name of any tool.
AUTHORSBaron Schwartz, Brian Fraser, and Daniel Nichter
ABOUT PERCONA TOOLKITThis 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 WARRANTYThis program is copyright 2011-2016 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.