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#!/bin/sh

# This program is part of Percona Toolkit: http://www.percona.com/software/
# See "COPYRIGHT, LICENSE, AND WARRANTY" at the end of this file for legal
# notices and disclaimers.

# ###########################################################################
# log_warn_die package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/bash/log_warn_die.sh
#   t/lib/bash/log_warn_die.sh
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################


set -u

PTFUNCNAME=""
PTDEBUG="${PTDEBUG:-""}"
EXIT_STATUS=0

ts() {
   TS=$(date +%F-%T | tr ':-' '_')
   echo "$TS $*"
}

info() {
   [ ${OPT_VERBOSE:-3} -ge 3 ] && ts "$*"
}

log() {
   [ ${OPT_VERBOSE:-3} -ge 2 ] && ts "$*"
}

warn() {
   [ ${OPT_VERBOSE:-3} -ge 1 ] && ts "$*" >&2
   EXIT_STATUS=1
}

die() {
   ts "$*" >&2
   EXIT_STATUS=1
   exit 1
}

_d () {
   [ "$PTDEBUG" ] && echo "# $PTFUNCNAME: $(ts "$*")" >&2
}

# ###########################################################################
# End log_warn_die package
# ###########################################################################

# ###########################################################################
# tmpdir package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/bash/tmpdir.sh
#   t/lib/bash/tmpdir.sh
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################


set -u

PT_TMPDIR=""

mk_tmpdir() {
   local dir="${1:-""}"

   if [ -n "$dir" ]; then
      if [ ! -d "$dir" ]; then
         mkdir "$dir" || die "Cannot make tmpdir $dir"
      fi
      PT_TMPDIR="$dir"
   else
      local tool="${0##*/}"
      local pid="$$"
      PT_TMPDIR=`mktemp -d -t "${tool}.${pid}.XXXXXX"` \
         || die "Cannot make secure tmpdir"
   fi
}

rm_tmpdir() {
   if [ -n "$PT_TMPDIR" ] && [ -d "$PT_TMPDIR" ]; then
      rm -rf "$PT_TMPDIR"
   fi
   PT_TMPDIR=""
}

# ###########################################################################
# End tmpdir package
# ###########################################################################

# ###########################################################################
# parse_options package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/bash/parse_options.sh
#   t/lib/bash/parse_options.sh
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################





set -u

ARGV=""           # Non-option args (probably input files)
EXT_ARGV=""       # Everything after -- (args for an external command)
HAVE_EXT_ARGV=""  # Got --, everything else is put into EXT_ARGV
OPT_ERRS=0        # How many command line option errors
OPT_VERSION=""    # If --version was specified
OPT_HELP=""       # If --help was specified
PO_DIR=""         # Directory with program option spec files

usage() {
   local file="$1"

   local usage="$(grep '^Usage: ' "$file")"
   echo $usage
   echo
   echo "For more information, 'man $TOOL' or 'perldoc $file'."
}

usage_or_errors() {
   local file="$1"
   local version=""

   if [ "$OPT_VERSION" ]; then
      version=$(grep '^pt-[^ ]\+ [0-9]' "$file")
      echo "$version"
      return 1
   fi

   if [ "$OPT_HELP" ]; then
      usage "$file"
      echo
      echo "Command line options:"
      echo
      perl -e '
         use strict;
         use warnings FATAL => qw(all);
         my $lcol = 20;         # Allow this much space for option names.
         my $rcol = 80 - $lcol; # The terminal is assumed to be 80 chars wide.
         my $name;
         while ( <> ) {
            my $line = $_;
            chomp $line;
            if ( $line =~ s/^long:/  --/ ) {
               $name = $line;
            }
            elsif ( $line =~ s/^desc:// ) {
               $line =~ s/ +$//mg;
               my @lines = grep { $_      }
                           $line =~ m/(.{0,$rcol})(?:\s+|\Z)/g;
               if ( length($name) >= $lcol ) {
                  print $name, "\n", (q{ } x $lcol);
               }
               else {
                  printf "%-${lcol}s", $name;
               }
               print join("\n" . (q{ } x $lcol), @lines);
               print "\n";
            }
         }
      ' "$PO_DIR"/*
      echo
      echo "Options and values after processing arguments:"
      echo
      (
         cd "$PO_DIR"
         for opt in *; do
            local varname="OPT_$(echo "$opt" | tr a-z- A-Z_)"
            eval local varvalue=\$$varname
            if ! grep -q "type:" "$PO_DIR/$opt" >/dev/null; then
               if [ "$varvalue" -a "$varvalue" = "yes" ];
                  then varvalue="TRUE"
               else
                  varvalue="FALSE"
               fi
            fi
            printf -- "  --%-30s %s" "$opt" "${varvalue:-(No value)}"
            echo
         done
      )
      return 1
   fi

   if [ $OPT_ERRS -gt 0 ]; then
      echo
      usage "$file"
      return 1
   fi

   return 0
}

option_error() {
   local err="$1"
   OPT_ERRS=$(($OPT_ERRS + 1))
   echo "$err" >&2
}

parse_options() {
   local file="$1"
   shift

   ARGV=""
   EXT_ARGV=""
   HAVE_EXT_ARGV=""
   OPT_ERRS=0
   OPT_VERSION=""
   OPT_HELP=""
   PO_DIR="$PT_TMPDIR/po"

   if [ ! -d "$PO_DIR" ]; then
      mkdir "$PO_DIR"
      if [ $? -ne 0 ]; then
         echo "Cannot mkdir $PO_DIR" >&2
         exit 1
      fi
   fi

   rm -rf "$PO_DIR"/*
   if [ $? -ne 0 ]; then
      echo "Cannot rm -rf $PO_DIR/*" >&2
      exit 1
   fi

   _parse_pod "$file"  # Parse POD into program option (po) spec files
   _eval_po            # Eval po into existence with default values

   if [ $# -ge 2 ] &&  [ "$1" = "--config" ]; then
      shift  # --config
      local user_config_files="$1"
      shift  # that ^
      local IFS=","
      for user_config_file in $user_config_files; do
         _parse_config_files "$user_config_file"
      done
   else
      _parse_config_files "/etc/percona-toolkit/percona-toolkit.conf" "/etc/percona-toolkit/$TOOL.conf"
      if [ "${HOME:-}" ]; then
         _parse_config_files "$HOME/.percona-toolkit.conf" "$HOME/.$TOOL.conf"
      fi
   fi

   _parse_command_line "${@:-""}"
}

_parse_pod() {
   local file="$1"

   PO_FILE="$file" PO_DIR="$PO_DIR" perl -e '
      $/ = "";
      my $file = $ENV{PO_FILE};
      open my $fh, "<", $file or die "Cannot open $file: $!";
      while ( defined(my $para = <$fh>) ) {
         next unless $para =~ m/^=head1 OPTIONS/;
         while ( defined(my $para = <$fh>) ) {
            last if $para =~ m/^=head1/;
            chomp;
            if ( $para =~ m/^=item --(\S+)/ ) {
               my $opt  = $1;
               my $file = "$ENV{PO_DIR}/$opt";
               open my $opt_fh, ">", $file or die "Cannot open $file: $!";
               print $opt_fh "long:$opt\n";
               $para = <$fh>;
               chomp;
               if ( $para =~ m/^[a-z ]+:/ ) {
                  map {
                     chomp;
                     my ($attrib, $val) = split(/: /, $_);
                     print $opt_fh "$attrib:$val\n";
                  } split(/; /, $para);
                  $para = <$fh>;
                  chomp;
               }
               my ($desc) = $para =~ m/^([^?.]+)/;
               print $opt_fh "desc:$desc.\n";
               close $opt_fh;
            }
         }
         last;
      }
   '
}

_eval_po() {
   local IFS=":"
   for opt_spec in "$PO_DIR"/*; do
      local opt=""
      local default_val=""
      local neg=0
      local size=0
      while read key val; do
         case "$key" in
            long)
               opt=$(echo $val | sed 's/-/_/g' | tr '[:lower:]' '[:upper:]')
               ;;
            default)
               default_val="$val"
               ;;
            "short form")
               ;;
            type)
               [ "$val" = "size" ] && size=1
               ;;
            desc)
               ;;
            negatable)
               if [ "$val" = "yes" ]; then
                  neg=1
               fi
               ;;
            *)
               echo "Invalid attribute in $opt_spec: $line" >&2
               exit 1
         esac 
      done < "$opt_spec"

      if [ -z "$opt" ]; then
         echo "No long attribute in option spec $opt_spec" >&2
         exit 1
      fi

      if [ $neg -eq 1 ]; then
         if [ -z "$default_val" ] || [ "$default_val" != "yes" ]; then
            echo "Option $opt_spec is negatable but not default: yes" >&2
            exit 1
         fi
      fi

      if [ $size -eq 1 -a -n "$default_val" ]; then
         default_val=$(size_to_bytes $default_val)
      fi

      eval "OPT_${opt}"="$default_val"
   done
}

_parse_config_files() {

   for config_file in "${@:-""}"; do
      test -f "$config_file" || continue

      while read config_opt; do

         echo "$config_opt" | grep '^[ ]*[^#]' >/dev/null 2>&1 || continue

         config_opt="$(echo "$config_opt" | sed -e 's/^ *//g' -e 's/ *$//g' -e 's/[ ]*=[ ]*/=/' -e 's/[ ]*#.*$//')"

         [ "$config_opt" = "" ] && continue

         echo "$config_opt" | grep -v 'version-check' >/dev/null 2>&1 || continue

         if ! [ "$HAVE_EXT_ARGV" ]; then
            config_opt="--$config_opt"
         fi

         _parse_command_line "$config_opt"

      done < "$config_file"

      HAVE_EXT_ARGV=""  # reset for each file

   done
}

_parse_command_line() {
   local opt=""
   local val=""
   local next_opt_is_val=""
   local opt_is_ok=""
   local opt_is_negated=""
   local real_opt=""
   local required_arg=""
   local spec=""

   for opt in "${@:-""}"; do
      if [ "$opt" = "--" -o "$opt" = "----" ]; then
         HAVE_EXT_ARGV=1
         continue
      fi
      if [ "$HAVE_EXT_ARGV" ]; then
         if [ "$EXT_ARGV" ]; then
            EXT_ARGV="$EXT_ARGV $opt"
         else
            EXT_ARGV="$opt"
         fi
         continue
      fi

      if [ "$next_opt_is_val" ]; then
         next_opt_is_val=""
         if [ $# -eq 0 ] || [ $(expr "$opt" : "\-") -eq 1 ]; then
            option_error "$real_opt requires a $required_arg argument"
            continue
         fi
         val="$opt"
         opt_is_ok=1
      else
         if [ $(expr "$opt" : "\-") -eq 0 ]; then
            if [ -z "$ARGV" ]; then
               ARGV="$opt"
            else
               ARGV="$ARGV $opt"
            fi
            continue
         fi

         real_opt="$opt"

         if $(echo $opt | grep '^--no[^-]' >/dev/null); then
            local base_opt=$(echo $opt | sed 's/^--no//')
            if [ -f "$PT_TMPDIR/po/$base_opt" ]; then
               opt_is_negated=1
               opt="$base_opt"
            else
               opt_is_negated=""
               opt=$(echo $opt | sed 's/^-*//')
            fi
         else
            if $(echo $opt | grep '^--no-' >/dev/null); then
               opt_is_negated=1
               opt=$(echo $opt | sed 's/^--no-//')
            else
               opt_is_negated=""
               opt=$(echo $opt | sed 's/^-*//')
            fi
         fi

         if $(echo $opt | grep '^[a-z-][a-z-]*=' >/dev/null 2>&1); then
            val="$(echo $opt | awk -F= '{print $2}')"
            opt="$(echo $opt | awk -F= '{print $1}')"
         fi

         if [ -f "$PT_TMPDIR/po/$opt" ]; then
            spec="$PT_TMPDIR/po/$opt"
         else
            spec=$(grep "^short form:-$opt\$" "$PT_TMPDIR"/po/* | cut -d ':' -f 1)
            if [ -z "$spec"  ]; then
               option_error "Unknown option: $real_opt"
               continue
            fi
         fi

         required_arg=$(cat "$spec" | awk -F: '/^type:/{print $2}')
         if [ "$required_arg" ]; then
            if [ "$val" ]; then
               opt_is_ok=1
            else
               next_opt_is_val=1
            fi
         else
            if [ "$val" ]; then
               option_error "Option $real_opt does not take a value"
               continue
            fi 
            if [ "$opt_is_negated" ]; then
               val=""
            else
               val="yes"
            fi
            opt_is_ok=1
         fi
      fi

      if [ "$opt_is_ok" ]; then
         opt=$(cat "$spec" | grep '^long:' | cut -d':' -f2 | sed 's/-/_/g' | tr '[:lower:]' '[:upper:]')

         if grep "^type:size" "$spec" >/dev/null; then
            val=$(size_to_bytes $val)
         fi

         eval "OPT_$opt"="'$val'"

         opt=""
         val=""
         next_opt_is_val=""
         opt_is_ok=""
         opt_is_negated=""
         real_opt=""
         required_arg=""
         spec=""
      fi
   done
}

size_to_bytes() {
   local size="$1"
   echo $size | perl -ne '%f=(B=>1, K=>1_024, M=>1_048_576, G=>1_073_741_824, T=>1_099_511_627_776); m/^(\d+)([kMGT])?/i; print $1 * $f{uc($2 || "B")};'
}

# ###########################################################################
# End parse_options package
# ###########################################################################

# ###########################################################################
# alt_cmds package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/bash/alt_cmds.sh
#   t/lib/bash/alt_cmds.sh
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################


set -u

_seq() {
   local i="$1"
   awk "BEGIN { for(i=1; i<=$i; i++) print i; }"
}

_pidof() {
   local cmd="$1"
   if ! pidof "$cmd" 2>/dev/null; then
      ps -eo pid,ucomm | awk -v comm="$cmd" '$2 == comm { print $1 }'
   fi
}

_lsof() {
   local pid="$1"
   if ! lsof -p $pid 2>/dev/null; then
      /bin/ls -l /proc/$pid/fd 2>/dev/null
   fi
}



_which() {
   if [ -x /usr/bin/which ]; then
      /usr/bin/which "$1" 2>/dev/null | awk '{print $1}'
   elif which which 1>/dev/null 2>&1; then
      which "$1" 2>/dev/null | awk '{print $1}'
   else
      echo "$1"
   fi
}

# ###########################################################################
# End alt_cmds package
# ###########################################################################

TOOL="pt-mext"

# Parse command line options.
mk_tmpdir
parse_options "$0" "${@:-""}"

if [ -z "$OPT_HELP" -a -z "$OPT_VERSION" ]; then
   if [ -z "$EXT_ARGV" ]; then
      option_error "No COMMAND was given."
   fi
fi

usage_or_errors "$0"
po_status=$?

if [ $po_status -ne 0 ]; then
   [ $OPT_ERRS -gt 0 ] && exit 1
   exit 0
fi

FILE="$PT_TMPDIR/mext_temp_file";
NUM=1;

# Split the output on empty lines and put each into a different file; eliminate
# lines that don't have "real" content.
$EXT_ARGV | grep -v '+' | grep -v Variable_name | sed 's/|//g' \
   | while read line; do
   if [ "$line" = "" ]; then
      NUM=$(($NUM + 1))
      echo "" > "$FILE$NUM"
   fi
   echo "$line" >> "$FILE$NUM"
done

SPEC="%-33s %13d"
AWKS=""

# Count how many files there are and prepare to format the output, but...
NUM=`ls "$FILE"* | wc -l`;

# ... iterate through files 1..(N-2) because the last file is empty and
# we join N to N+1 so also don't read the last real file.
NUM=$((NUM - 2))

# Join each file with the next file, joining on the first field. Build a printf
# spec and awk spec at the same time.
for i in `_seq $NUM`; do
   NEXTFILE=$(($i + 1))

   # Sort each file and eliminate empty lines, so 'join' doesn't complain.
   sort "$FILE$i" | grep . > "$FILE$i.tmp"
   mv "$FILE$i.tmp" "$FILE$i"
   sort "$FILE${NEXTFILE}" | grep . > "$FILE${NEXTFILE}.tmp"
   mv "$FILE${NEXTFILE}.tmp" "$FILE${NEXTFILE}"

   # Join the files together.  This gets slow O(n^2) as we add more files, but
   # this really shouldn't be performance critical.
   join "$FILE$i" "$FILE${NEXTFILE}" | grep . > "$FILE"

   # Find the max length of the [numeric only] values in the file so we know how
   # wide to make the columns
   MAXLEN=`awk '{print $2}' "$FILE${NEXTFILE}" | grep -v '[^0-9]' | awk '{print length($1)}' | sort -rn | head -n1`
   mv "$FILE" "$FILE${NEXTFILE}"
   SPEC="$SPEC %${MAXLEN}d";

   # The final file will contain lines like:
   #
   #   Bytes_received 100 200 50 300
   #
   # For each such line in awk, $1 is the var name and $2 is the first value
   # of the var, so these are fixed when we build AWKCMD after this loop.
   # When i=1, we're comparing file1 to file2, and the resulting value becomes
   # awk $3.  Hence $i + 2=$3 below.  Then incr and repeat for subsequent files.
   #
   # With --relative, the $i and awk field numbers are the same, but we print
   # differences $3-$2, $4-$3, $5-$4 from the input line for awk fields $3, $4,
   # and $5 respectively.  Here's a table:
   #
   #    i  awk  Input line fields
   #   ==  ===  =================
   #    1   $3              $3-$2
   #    2   $4              $4-$3
   #    3   $5              $5-$4
   if [ "$OPT_RELATIVE" ]; then
      AWKS="$AWKS, \$`expr $i + 2` - \$`expr $i + 1`";
   else
      AWKS="$AWKS, \$$(($i + 2))";
   fi
done

# Print output
AWKCMD="printf(\"$SPEC\n\", \$1, \$2$AWKS);";
awk "{$AWKCMD}" "$FILE`expr $NUM + 1`"

# Remove all temporary files and the tmp dir.
rm_tmpdir

exit 0

# ############################################################################
# Documentation
# ############################################################################
:<<'DOCUMENTATION'
=pod

=head1 NAME

pt-mext - Look at many samples of MySQL C<SHOW GLOBAL STATUS> side-by-side.

=head1 SYNOPSIS

Usage: pt-mext [OPTIONS] -- COMMAND

pt-mext columnizes repeated output from a program like mysqladmin extended.

Get output from C<mysqladmin>:

   pt-mext -r -- mysqladmin ext -i10 -c3

Get output from a file:

   pt-mext -r -- cat mysqladmin-output.txt

=head1 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:

=over

=item * Read the tool's documentation

=item * Review the tool's known L<"BUGS">

=item * Test the tool on a non-production server

=item * Backup your production server and verify the backups

=back

=head1 DESCRIPTION

pt-mext executes the C<COMMAND> you specify, and reads through the result one
line at a time.  It places each line into a temporary file.  When it finds a
blank line, it assumes that a new sample of SHOW GLOBAL STATUS is starting,
and it creates a new temporary file.  At the end of this process, it has a
number of temporary files.  It joins the temporary files together side-by-side
and prints the result.  If L<"--relative"> option is given, it first subtracts
each sample from the one after it before printing results.

=head1 OPTIONS

=over

=item --help

Show help and exit.

=item --relative

short form: -r

Subtract each column from the previous column.

=item --version

Show version and exit.

=back

=head1 ENVIRONMENT

This tool does not use any environment variables.

=head1 SYSTEM REQUIREMENTS

This tool requires the Bourne shell (F</bin/sh>) and the seq program.

=head1 BUGS

For a list of known bugs, see L<http://www.percona.com/bugs/pt-mext>.

Please report bugs at L<https://bugs.launchpad.net/percona-toolkit>.
Include the following information in your bug report:

=over

=item * Complete command-line used to run the tool

=item * Tool L<"--version">

=item * MySQL version of all servers involved

=item * Output from the tool including STDERR

=item * Input files (log/dump/config files, etc.)

=back

If possible, include debugging output by running the tool with C<PTDEBUG>;
see L<"ENVIRONMENT">.

=head1 DOWNLOADING

Visit L<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 C<TOOL> with the name of any tool.

=head1 AUTHORS

Baron Schwartz

=head1 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
L<http://www.percona.com/software/> to learn about other free, open-source
software from Percona.

=head1 COPYRIGHT, LICENSE, AND WARRANTY

This program is copyright 2011-2015 Percona LLC and/or its affiliates,
2010 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.

=head1 VERSION

pt-mext 2.2.16

=cut

DOCUMENTATION
bypass 1.0, Devloped By El Moujahidin (the source has been moved and devloped)
Email: contact@elmoujehidin.net