Update Vulnerabilities list

Indenting mysqltuner
Update Usage information

USAGE.md

@@ -0,0 +1,156 @@
+# NAME
+
+    MySQLTuner 1.8.1 - MySQL High Performance Tuning Script
+
+# IMPORTANT USAGE GUIDELINES
+
+To run the script with the default options, run the script without arguments
+Allow MySQL server to run for at least 24-48 hours before trusting suggestions
+Some routines may require root level privileges (script will provide warnings)
+You must provide the remote server's total memory when connecting to other servers
+
+# CONNECTION AND AUTHENTICATION
+
+    --host <hostname>           Connect to a remote host to perform tests (default: localhost)
+    --socket <socket>           Use a different socket for a local connection
+    --port <port>               Port to use for connection (default: 3306)
+    --user <username>           Username to use for authentication
+    --userenv <envvar>          Name of env variable which contains username to use for authentication
+    --pass <password>           Password to use for authentication
+    --passenv <envvar>          Name of env variable which contains password to use for authentication
+    --ssl-ca <path>             Path to public key
+    --mysqladmin <path>         Path to a custom mysqladmin executable
+    --mysqlcmd <path>           Path to a custom mysql executable
+    --defaults-file <path>      Path to a custom .my.cnf
+    --server-log <path>         Path to explict log file
+
+# PERFORMANCE AND REPORTING OPTIONS
+
+    --skipsize                  Don't enumerate tables and their types/sizes (default: on)
+                                (Recommended for servers with many tables)
+    --skippassword              Don't perform checks on user passwords(default: off)
+    --checkversion              Check for updates to MySQLTuner (default: don't check)
+    --updateversion             Check for updates to MySQLTuner and update when newer version is available (default: don't check)
+    --forcemem <size>           Amount of RAM installed in megabytes
+    --forceswap <size>          Amount of swap memory configured in megabytes
+    --passwordfile <path>       Path to a password file list(one password by line)
+
+# OUTPUT OPTIONS
+
+    --silent                    Don't output anything on screen
+    --nogood                    Remove OK responses
+    --nobad                     Remove negative/suggestion responses
+    --noinfo                    Remove informational responses
+    --debug                     Print debug information
+    --noprocess                Consider no other process is running
+    --dbstat                    Print database information
+    --nodbstat                  Don't Print database information
+    --tbstat                    Print table information
+    --notbstat                  Don't Print table information
+    --colstat                   Print column information
+    --nocolstat                  Don't Print column information
+    --idxstat                   Print index information
+    --noidxstat                 Don't Print index information
+    --sysstat                   Print system information
+    --nosysstat                 Don't Print system information
+    --pfstat                    Print Performance schema
+    --nopfstat                  Don't Print Performance schema
+    --verbose                   Prints out all options (default: no verbose, dbstat, idxstat, sysstat, tbstat, pfstat)
+    --bannedports               Ports banned separated by comma(,)
+    --maxportallowed            Number of ports opened allowed on this hosts
+    --cvefile <path>            CVE File for vulnerability checks
+    --nocolor                   Don't print output in color
+    --json                      Print result as JSON string
+    --buffers                   Print global and per-thread buffer values
+    --outputfile <path>         Path to a output txt file
+    --reportfile <path>         Path to a report txt file
+    --template   <path>         Path to a template file
+
+# PERLDOC
+
+You can find documentation for this module with the perldoc command.
+
+    perldoc mysqltuner
+
+## INTERNALS
+
+[https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md](https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md)
+
+    Internal documentation
+
+# AUTHORS
+
+Major Hayden - major@mhtx.net
+
+# CONTRIBUTORS
+
+- Matthew Montgomery
+- Paul Kehrer
+- Dave Burgess
+- Jonathan Hinds
+- Mike Jackson
+- Nils Breunese
+- Shawn Ashlee
+- Luuk Vosslamber
+- Ville Skytta
+- Trent Hornibrook
+- Jason Gill
+- Mark Imbriaco
+- Greg Eden
+- Aubin Galinotti
+- Giovanni Bechis
+- Bill Bradford
+- Ryan Novosielski
+- Michael Scheidell
+- Blair Christensen
+- Hans du Plooy
+- Victor Trac
+- Everett Barnes
+- Tom Krouper
+- Gary Barrueto
+- Simon Greenaway
+- Adam Stein
+- Isart Montane
+- Baptiste M.
+- Cole Turner
+- Major Hayden
+- Joe Ashcraft
+- Jean-Marie Renouard
+- Stephan GroBberndt
+- Christian Loos
+
+# SUPPORT
+
+Bug reports, feature requests, and downloads at http://mysqltuner.pl/
+
+Bug tracker can be found at https://github.com/major/MySQLTuner-perl/issues
+
+Maintained by Major Hayden (major\\@mhtx.net) - Licensed under GPL
+
+# SOURCE CODE
+
+[https://github.com/major/MySQLTuner-perl](https://github.com/major/MySQLTuner-perl)
+
+    git clone https://github.com/major/MySQLTuner-perl.git
+
+# COPYRIGHT AND LICENSE
+
+Copyright (C) 2006-2021 Major Hayden - major@mhtx.net
+
+For the latest updates, please visit http://mysqltuner.pl/
+
+Git repository available at https://github.com/major/MySQLTuner-perl
+
+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, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+    See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see &lt;https://www.gnu.org/licenses/>.

mysqltuner.pl

@@ -1669,15 +1669,15 @@ sub get_kernel_info {
         infoprint "TCP slot entries is > 100.";
     }
 
-    if ( -f "/proc/sys/fs/aio-max-nr" )
+    if ( -f "/proc/sys/fs/aio-max-nr" ) {
-    {
         if ( `sysctl -n fs.aio-max-nr` < 1000000 ) {
             badprint
 "Max running total of the number of events is < 1M, please consider having a value greater than 1M";
             push @generalrec, "setup Max running number events greater than 1M";
             push @adjvars,
               'fs.aio-max-nr > 1M (echo 1048576 > /proc/sys/fs/aio-max-nr)';
-	    } else {
+        }
+        else {
             infoprint "Max Number of AIO events is > 1M.";
         }
     }
@@ -2745,15 +2745,18 @@ sub calculations {
         if ( not defined( $mystat{'Table_open_cache_hits'} ) ) {
             $mycalc{'table_cache_hit_rate'} =
               int( $mystat{'Open_tables'} * 100 / $mystat{'Opened_tables'} );
-    	} else {
+        }
-	        $mycalc{'table_cache_hit_rate'} =
+        else {
-    		  int(
+            $mycalc{'table_cache_hit_rate'} = int(
                 $mystat{'Table_open_cache_hits'} * 100 / (
                     $mystat{'Table_open_cache_hits'} +
-                  	$mystat{'Table_open_cache_misses'} ) );
+                      $mystat{'Table_open_cache_misses'}
+                )
+            );
         }
 
-    } else {
+    }
+    else {
         $mycalc{'table_cache_hit_rate'} = 100;
     }
 
@@ -2811,8 +2814,10 @@ sub calculations {
     }
 
     # InnoDB
-    $myvar{'innodb_log_files_in_group'} = 1 unless defined($myvar{'innodb_log_files_in_group'});
+    $myvar{'innodb_log_files_in_group'} = 1
-    $myvar{"innodb_buffer_pool_instances"} = 1 unless defined($myvar{'innodb_buffer_pool_instances'});
+      unless defined( $myvar{'innodb_log_files_in_group'} );
+    $myvar{"innodb_buffer_pool_instances"} = 1
+      unless defined( $myvar{'innodb_buffer_pool_instances'} );
     if ( $myvar{'have_innodb'} eq "YES" ) {
         $mycalc{'innodb_log_size_pct'} =
           ( $myvar{'innodb_log_file_size'} *
@@ -3305,13 +3310,16 @@ sub mysql_stats {
         if ( $mycalc{'table_cache_hit_rate'} < 20 ) {
 
             unless ( defined( $mystat{'Table_open_cache_hits'} ) ) {
-    		 badprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
+                badprint
+                  "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
                   . hr_num( $mystat{'Open_tables'} )
                   . " hits / "
                   . hr_num( $mystat{'Opened_tables'} )
                   . " requests)";
-    		} else {
+            }
-	          badprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
+            else {
+                badprint
+                  "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
                   . hr_num( $mystat{'Table_open_cache_hits'} )
                   . " hits / "
                   . hr_num( $mystat{'Table_open_cache_hits'} +
@@ -3319,7 +3327,6 @@ sub mysql_stats {
                   . " requests)";
             }
 
-
             if ( mysql_version_ge( 5, 1 ) ) {
                 $table_cache_var = "table_open_cache";
             }
@@ -3361,13 +3368,16 @@ sub mysql_stats {
         }
         else {
             unless ( defined( $mystat{'Table_open_cache_hits'} ) ) {
-    		 goodprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
+                goodprint
+                  "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
                   . hr_num( $mystat{'Open_tables'} )
                   . " hits / "
                   . hr_num( $mystat{'Opened_tables'} )
                   . " requests)";
-    		} else {
+            }
-	          goodprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
+            else {
+                goodprint
+                  "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
                   . hr_num( $mystat{'Table_open_cache_hits'} )
                   . " hits / "
                   . hr_num( $mystat{'Table_open_cache_hits'} +