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+#!/bin/bash
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+#
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+### BEGIN INIT INFO
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+# Provides: mysql
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+# Required-Start: $remote_fs $syslog
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+# Required-Stop: $remote_fs $syslog
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+# Should-Start: $network $time
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+# Should-Stop: $network $time
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+# Default-Start: 2 3 4 5
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+# Default-Stop: 0 1 6
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+# Short-Description: Start and stop the mysql database server daemon
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+# Description: Controls the main MySQL database server daemon "mysqld"
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+# and its wrapper script "mysqld_safe".
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+### END INIT INFO
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+#
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+set -e
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+set -u
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+${DEBIAN_SCRIPT_DEBUG:+ set -v -x}
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+
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+test -x /usr/bin/mysqld_safe || exit 0
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+
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+. /lib/lsb/init-functions
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+
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+SELF=$(cd $(dirname $0); pwd -P)/$(basename $0)
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+CONF=/etc/mysql/my.cnf
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+MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"
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+
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+# priority can be overriden and "-s" adds output to stderr
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+ERR_LOGGER="logger -p daemon.err -t /etc/init.d/mysql -i"
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+
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+# Safeguard (relative paths, core dumps..)
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+cd /
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+umask 077
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+
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+# mysqladmin likes to read /root/.my.cnf. This is usually not what I want
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+# as many admins e.g. only store a password without a username there and
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+# so break my scripts.
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+export HOME=/etc/mysql/
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+
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+## Fetch a particular option from mysql's invocation.
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+#
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+# Usage: void mysqld_get_param option
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+mysqld_get_param() {
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+ /usr/sbin/mysqld --print-defaults \
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+ | tr " " "\n" \
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+ | grep -- "--$1" \
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+ | tail -n 1 \
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+ | cut -d= -f2
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+}
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+
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+## Do some sanity checks before even trying to start mysqld.
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+sanity_checks() {
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+ # check for config file
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+ if [ ! -r /etc/mysql/my.cnf ]; then
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+ log_warning_msg "$0: WARNING: /etc/mysql/my.cnf cannot be read. See README.Debian.gz"
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+ echo "WARNING: /etc/mysql/my.cnf cannot be read. See README.Debian.gz" | $ERR_LOGGER
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+ fi
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+
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+ # check for diskspace shortage
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+# datadir=`mysqld_get_param datadir`
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+# if LC_ALL=C BLOCKSIZE= df --portability $datadir/. | tail -n 1 | awk '{ exit ($4>4096) }'; then
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+# log_failure_msg "$0: ERROR: The partition with $datadir is too full!"
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+# echo "ERROR: The partition with $datadir is too full!" | $ERR_LOGGER
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+# exit 1
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+# fi
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+}
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+
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+## Checks if there is a server running and if so if it is accessible.
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+#
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+# check_alive insists on a pingable server
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+# check_dead also fails if there is a lost mysqld in the process list
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+#
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+# Usage: boolean mysqld_status [check_alive|check_dead] [warn|nowarn]
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+mysqld_status () {
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+ ping_output=`$MYADMIN ping 2>&1`; ping_alive=$(( ! $? ))
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+
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+ ps_alive=0
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+ pidfile=`mysqld_get_param pid-file`
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+ if [ -f "$pidfile" ] && ps `cat $pidfile` >/dev/null 2>&1; then ps_alive=1; fi
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+
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+ if [ "$1" = "check_alive" -a $ping_alive = 1 ] ||
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+ [ "$1" = "check_dead" -a $ping_alive = 0 -a $ps_alive = 0 ]; then
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+ return 0 # EXIT_SUCCESS
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+ else
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+ if [ "$2" = "warn" ]; then
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+ echo -e "$ps_alive processes alive and '$MYADMIN ping' resulted in\n$ping_output\n" | $ERR_LOGGER -p daemon.debug
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+ fi
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+ return 1 # EXIT_FAILURE
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+ fi
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+}
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+
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+#
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+# main()
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+#
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+
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+case "${1:-''}" in
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+ 'start')
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+ sanity_checks;
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+ # Start daemon
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+ log_daemon_msg "Starting MySQL database server" "mysqld"
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+ if mysqld_status check_alive nowarn; then
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+ log_progress_msg "already running"
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+ log_end_msg 0
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+ else
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+ # Could be removed during boot
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+ test -e /var/run/mysqld || install -m 755 -o mysql -g root -d /var/run/mysqld
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+
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+ # Start MySQL!
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+ su - mysql -s /bin/sh -c "/usr/bin/mysqld_safe > /dev/null 2>&1 &"
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+
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+ # 6s was reported in #352070 to be too few when using ndbcluster
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+ # 14s was reported in #736452 to be too few with large installs
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+ for i in $(seq 1 30); do
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+ sleep 1
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+ if mysqld_status check_alive nowarn ; then break; fi
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+ log_progress_msg "."
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+ done
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+ if mysqld_status check_alive warn; then
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+ log_end_msg 0
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+ # Now start mysqlcheck or whatever the admin wants.
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+ output=$(/etc/mysql/debian-start)
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+ [ -n "$output" ] && log_action_msg "$output"
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+ else
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+ log_end_msg 1
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+ log_failure_msg "Please take a look at the syslog"
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+ fi
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+ fi
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+ ;;
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+
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+ 'stop')
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+ # * As a passwordless mysqladmin (e.g. via ~/.my.cnf) must be possible
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+ # at least for cron, we can rely on it here, too. (although we have
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+ # to specify it explicit as e.g. sudo environments points to the normal
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+ # users home and not /root)
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+ log_daemon_msg "Stopping MySQL database server" "mysqld"
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+ if ! mysqld_status check_dead nowarn; then
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+ set +e
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+ shutdown_out=`$MYADMIN shutdown 2>&1`; r=$?
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+ set -e
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+ if [ "$r" -ne 0 ]; then
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+ log_end_msg 1
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+ [ "$VERBOSE" != "no" ] && log_failure_msg "Error: $shutdown_out"
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+ log_daemon_msg "Killing MySQL database server by signal" "mysqld"
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+ killall -15 mysqld
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+ server_down=
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+ for i in 1 2 3 4 5 6 7 8 9 10; do
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+ sleep 1
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+ if mysqld_status check_dead nowarn; then server_down=1; break; fi
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+ done
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+ if test -z "$server_down"; then killall -9 mysqld; fi
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+ fi
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+ fi
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+
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+ if ! mysqld_status check_dead warn; then
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+ log_end_msg 1
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+ log_failure_msg "Please stop MySQL manually and read /usr/share/doc/mysql-server-5.6/README.Debian.gz!"
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+ exit -1
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+ else
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+ log_end_msg 0
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+ fi
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+ ;;
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+
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+ 'restart')
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+ set +e; $SELF stop; set -e
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+ $SELF start
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+ ;;
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+
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+ 'reload'|'force-reload')
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+ log_daemon_msg "Reloading MySQL database server" "mysqld"
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+ $MYADMIN reload
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+ log_end_msg 0
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+ ;;
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+
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+ 'status')
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+ if mysqld_status check_alive nowarn; then
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+ log_action_msg "$($MYADMIN version)"
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+ else
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+ log_action_msg "MySQL is stopped."
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+ exit 3
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+ fi
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+ ;;
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+
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+ *)
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+ echo "Usage: $SELF start|stop|restart|reload|force-reload|status"
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+ exit 1
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+ ;;
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+esac
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+
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