pt-align - Align output from other tools to columns.
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
The following section is included to inform users about the potential risks, whether known or unknown, of using this tool. The two main categories of risks are those created by the nature of the tool (e.g. read-only tools vs. read-write tools) and those created by bugs.
pt-align is a read-only tool. It should be very low-risk.
At the time of this release, we know of no bugs that could cause serious harm to users.
The authoritative source for updated information is always the online issue tracking system. Issues that affect this tool will be marked as such. You can see a list of such issues at the following URL: http://www.percona.com/bugs/pt-align.
See also “BUGS” for more information on filing bugs and getting help.
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.
This tool does not have any command-line options.
This tool does not use any environment variables.
You need Perl, and some core packages that ought to be installed in any reasonably new version of Perl.
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:
If possible, include debugging output by running the tool with PTDEBUG; see “ENVIRONMENT”.
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.
Baron Schwartz, Brian Fraser, and Daniel Nichter
This tool is part of Percona Toolkit, a collection of advanced command-line tools developed by Percona for MySQL support and consulting. Percona Toolkit was forked from two projects in June, 2011: Maatkit and Aspersa. Those projects were created by Baron Schwartz and developed primarily by him and Daniel Nichter, both of whom are employed by Percona. Visit http://www.percona.com/software/ for more software developed by Percona.
This program is copyright 2011-2013 Percona Ireland Ltd, 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.
pt-align 2.1.10
For general inquiries, please send us your question and someone will contact you.
