diff --git a/functions/fn_details_config b/functions/fn_details_config
index 416d38133..815153f23 100644
--- a/functions/fn_details_config
+++ b/functions/fn_details_config
@@ -52,7 +52,7 @@ if [ "${engine}" == "avalanche" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "MaxPlayers" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		slots=$(grep "MaxPlayers" "${servercfgfullpath}" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -62,7 +62,7 @@ if [ "${engine}" == "avalanche" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "BindPort" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		port=$(grep "BindPort" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -95,7 +95,7 @@ elif [ "${engine}" == "dontstarve" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "max_players" "${servercfgfullpath}" | grep -v "#" | tr -cd "[:digit:]")
+		slots=$(grep "max_players" "${servercfgfullpath}" | grep -v "#" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -115,7 +115,7 @@ elif [ "${engine}" == "dontstarve" ]; then
 
 	# tickrate
 	if [ -f "${servercfgfullpath}" ]; then
-		tickrate=$(grep "tick_rate" "${servercfgfullpath}" | grep -v "#" | tr -cd "[:digit:]")
+		tickrate=$(grep "tick_rate" "${servercfgfullpath}" | grep -v "#" | tr -cd '[:digit:]')
 		if [ ! -n "${tickrate}" ]; then
 			tickrate="NOT SET"
 		fi
@@ -125,7 +125,7 @@ elif [ "${engine}" == "dontstarve" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "server_port" "${servercfgfullpath}" | grep -v "#" | tr -cd "[:digit:]")
+		port=$(grep "server_port" "${servercfgfullpath}" | grep -v "#" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -148,7 +148,7 @@ elif [ "${engine}" == "projectzomboid" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "MaxPlayers=" "${servercfgfullpath}" | grep -v "#" | tr -cd "[:digit:]")
+		slots=$(grep "MaxPlayers=" "${servercfgfullpath}" | grep -v "#" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -158,7 +158,7 @@ elif [ "${engine}" == "projectzomboid" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "DefaultPort=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		port=$(grep "DefaultPort=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -201,7 +201,7 @@ elif [ "${engine}" == "realvirtuality" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "maxPlayers" "${servercfgfullpath}" | grep -v "#" | tr -cd "[:digit:]")
+		slots=$(grep "maxPlayers" "${servercfgfullpath}" | grep -v "#" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -211,7 +211,7 @@ elif [ "${engine}" == "realvirtuality" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "serverport=" "${servercfgfullpath}" | grep -v // | tr -d '\r' | tr -cd "[:digit:]")
+		port=$(grep "serverport=" "${servercfgfullpath}" | grep -v // | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -219,7 +219,7 @@ elif [ "${engine}" == "realvirtuality" ]; then
 
 	# query port
 	if [ -f "${servercfgfullpath}" ]; then
-		queryport=$(grep "steamqueryport=" "${servercfgfullpath}" | grep -v // | tr -d '\r' | tr -cd "[:digit:]")
+		queryport=$(grep "steamqueryport=" "${servercfgfullpath}" | grep -v // | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${queryport}" ]; then
 		queryport="0"
@@ -227,7 +227,7 @@ elif [ "${engine}" == "realvirtuality" ]; then
 
 	# master port
 	if [ -f "${servercfgfullpath}" ]; then
-		masterport=$(grep "steamport=" "${servercfgfullpath}" | grep -v // | tr -d '\r' | tr -cd "[:digit:]")
+		masterport=$(grep "steamport=" "${servercfgfullpath}" | grep -v // | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${masterport}" ]; then
 		masterport="0"
@@ -259,7 +259,7 @@ elif [ "${engine}" == "seriousengine35" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "gam_ctMaxPlayers" "${servercfgfullpath}" | grep -v "#" | tr -cd "[:digit:]")
+		slots=$(grep "gam_ctMaxPlayers" "${servercfgfullpath}" | grep -v "#" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -279,7 +279,7 @@ elif [ "${engine}" == "seriousengine35" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "prj_uwPort" "${servercfgfullpath}" | tr -d '\r' | tr -cd "[:digit:]")
+		port=$(grep "prj_uwPort" "${servercfgfullpath}" | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -364,7 +364,7 @@ elif [ "${gamename}" == "Teamspeak 3" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "default_voice_port=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		port=$(grep "default_voice_port=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="9987"
@@ -372,7 +372,7 @@ elif [ "${gamename}" == "Teamspeak 3" ]; then
 
 	# query port
 	if [ -f "${servercfgfullpath}" ]; then
-		queryport=$(grep "query_port=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		queryport=$(grep "query_port=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${queryport}" ]; then
 		queryport="10011"
@@ -380,7 +380,7 @@ elif [ "${gamename}" == "Teamspeak 3" ]; then
 
 	# file port
 	if [ -f "${servercfgfullpath}" ]; then
-		fileport=$(grep "filetransfer_port=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		fileport=$(grep "filetransfer_port=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${fileport}" ]; then
 		fileport="30033"
@@ -422,7 +422,7 @@ elif [ "${engine}" == "teeworlds" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "sv_port" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		port=$(grep "sv_port" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="8303"
@@ -430,7 +430,7 @@ elif [ "${engine}" == "teeworlds" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "sv_max_clients" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		slots=$(grep "sv_max_clients" "${servercfgfullpath}" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="12"
 		fi
@@ -444,7 +444,7 @@ elif [ "${engine}" == "terraria" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "port=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		port=$(grep "port=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -484,7 +484,7 @@ elif [ "${engine}" == "unity3d" ]; then
 
 	# webadmin port
 	if [ -f "${servercfgfullpath}" ]; then
-		webadminport=$(grep "ControlPanelPort" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		webadminport=$(grep "ControlPanelPort" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${webadminport}" ]; then
 		webadminport="0"
@@ -522,7 +522,7 @@ elif [ "${engine}" == "unity3d" ]; then
 
 	# telnet port
 	if [ -f "${servercfgfullpath}" ]; then
-		telnetport=$(grep "TelnetPort" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		telnetport=$(grep "TelnetPort" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${telnetport}" ]; then
 		telnetport="0"
@@ -540,7 +540,7 @@ elif [ "${engine}" == "unity3d" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "ServerMaxPlayerCount" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		slots=$(grep "ServerMaxPlayerCount" "${servercfgfullpath}" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -570,7 +570,7 @@ elif [ "${engine}" == "unity3d" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "sv_port" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		port=$(grep "sv_port" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -620,7 +620,7 @@ elif [ "${engine}" == "unreal" ] || [ "${engine}" == "unreal2" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "Port=" "${servercfgfullpath}" | grep -v "Master" | grep -v "LAN" | grep -v "Proxy" | grep -v "Listen" | tr -d '\r' | tr -cd "[:digit:]")
+		port=$(grep "Port=" "${servercfgfullpath}" | grep -v "Master" | grep -v "LAN" | grep -v "Proxy" | grep -v "Listen" | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -636,7 +636,7 @@ elif [ "${engine}" == "unreal" ] || [ "${engine}" == "unreal2" ]; then
 
 	# gamespy query port
 	if [ -f "${servercfgfullpath}" ]; then
-		gsqueryport=$(grep "OldQueryPortNumber=" "${servercfgfullpath}" | tr -d '\r' | tr -cd "[:digit:]")
+		gsqueryport=$(grep "OldQueryPortNumber=" "${servercfgfullpath}" | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${gsqueryport}" ]; then
 		gsqueryport="0"
@@ -662,7 +662,7 @@ elif [ "${engine}" == "unreal" ] || [ "${engine}" == "unreal2" ]; then
 
 	# webadmin port
 	if [ -f "${servercfgfullpath}" ]; then
-		webadminport=$(grep "ListenPort=" "${servercfgfullpath}" | tr -d '\r' | tr -cd "[:digit:]")
+		webadminport=$(grep "ListenPort=" "${servercfgfullpath}" | tr -d '\r' | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${webadminport}" ]; then
 		webadminport="0"
@@ -750,7 +750,7 @@ elif [ "${gamename}" == "ARK: Survivial Evolved" ]; then
 
 	# slots
 	if [ -f "${servercfgfullpath}" ]; then
-		slots=$(grep "MaxPlayers=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		slots=$(grep "MaxPlayers=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 		if [ ! -n "${slots}" ]; then
 			slots="NOT SET"
 		fi
@@ -760,7 +760,7 @@ elif [ "${gamename}" == "ARK: Survivial Evolved" ]; then
 
 	# port
 	if [ -f "${servercfgfullpath}" ]; then
-		port=$(grep "Port=" "${servercfgfullpath}" | grep -v  "RCONPort=" | grep -v  "QueryPort=" | tr -cd "[:digit:]")
+		port=$(grep "Port=" "${servercfgfullpath}" | grep -v  "RCONPort=" | grep -v  "QueryPort=" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${port}" ]; then
 		port="0"
@@ -768,7 +768,7 @@ elif [ "${gamename}" == "ARK: Survivial Evolved" ]; then
 
 	# rcon port
 	if [ -f "${servercfgfullpath}" ]; then
-		rconport=$(grep "RCONPort=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+		rconport=$(grep "RCONPort=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${rconport}" ]; then
 		rconport="0"
@@ -776,7 +776,7 @@ elif [ "${gamename}" == "ARK: Survivial Evolved" ]; then
 
 	# query port
 	if [ -f "${servercfgfullpath}" ]; then
-			queryport=$(grep "QueryPort=" "${servercfgfullpath}" | tr -cd "[:digit:]")
+			queryport=$(grep "QueryPort=" "${servercfgfullpath}" | tr -cd '[:digit:]')
 	fi
 	if [ ! -n "${queryport}" ]; then
 		queryport="0"
diff --git a/functions/fn_details_distro b/functions/fn_details_distro
index b438f012f..11122d7f6 100644
--- a/functions/fn_details_distro
+++ b/functions/fn_details_distro
@@ -2,7 +2,7 @@
 # LGSM fn_details_distro function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-# Version: 270515
+# Version: 301015
 
 # Description: Variables providing useful info on the Operating System such as disk and performace info.
 # Used for fn_details, fn_debug and fn_email.
@@ -29,7 +29,7 @@ glibcv=$(ldd --version |grep ldd|awk '{print $NF}')
 # e.g: tmux 1.6
 if [ -z "$(command -v tmux)" ]; then
 	tmuxv="\e[0;31mNOT INSTALLED!\e[0m"
-elif [ "$(tmux -V|sed "s/tmux //"|sed -n '1 p'|tr -cd [:digit:])" -lt "16" ]; then
+elif [ "$(tmux -V|sed "s/tmux //"|sed -n '1 p'|tr -cd '[:digit:])' -lt "16" ]; then
 	tmuxv="$(tmux -V) (>= 1.6 required for console log)"
 else
 	tmuxv=$(tmux -V)
diff --git a/functions/fn_install_ts3 b/functions/fn_install_ts3
index 67c6d5c9d..78246c0cf 100644
--- a/functions/fn_install_ts3
+++ b/functions/fn_install_ts3
@@ -2,7 +2,7 @@
 # LGSM fn_install_ts3 function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-# Version: 270715
+# Version: 301015
 
 fn_details_distro
 # Gets the teamspeak server architecture
@@ -19,7 +19,7 @@ fi
 wget "http://dl.4players.de/ts/releases/?C=M;O=D" -q -O -| grep -i dir | egrep -o '<a href=\".*\/\">.*\/<\/a>' | egrep -o '[0-9\.?]+'|uniq > .ts3_version_numbers_unsorted.tmp
 
 # removes digits to allow sorting of numbers
-cat .ts3_version_numbers_unsorted.tmp |tr -cd "[:digit:][*\n]" > .ts3_version_numbers_digit.tmp
+cat .ts3_version_numbers_unsorted.tmp |tr -cd '[:digit:][*\n]' > .ts3_version_numbers_digit.tmp
 # Sorts numbers in to correct order
 # merges two files in to one with two columns sorts the numbers in to order then only outputs the second to the ts3_version_numbers.tmp
 paste .ts3_version_numbers_digit.tmp .ts3_version_numbers_unsorted.tmp |sort -rn|awk '{ print $2 }' > .ts3_version_numbers.tmp
diff --git a/functions/fn_monitor_query b/functions/fn_monitor_query
index e58387cc8..0b575bb42 100644
--- a/functions/fn_monitor_query
+++ b/functions/fn_monitor_query
@@ -2,7 +2,7 @@
 # LGSM fn_monitor_query function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-# Version: 030715
+# Version: 301015
 
 # Description: uses gsquery.py to directly query the server.
 # Detects if the server has frozen.
@@ -10,15 +10,15 @@
 local modulename="Monitor"
 if [ -f "${rootdir}/gsquery.py" ]; then
 	if [ "${engine}" == "unreal" ]||[ "${engine}" == "unreal2" ]; then
-		gameport=$(grep Port= "${servercfgfullpath}"|grep -v Master|grep -v LAN|grep -v Proxy|grep -v Listen|tr -d '\r'|tr -cd [:digit:])
+		gameport=$(grep Port= "${servercfgfullpath}"|grep -v Master|grep -v LAN|grep -v Proxy|grep -v Listen|tr -d '\r'|tr -cd '[:digit:]')
 		port=$((${gameport} + 1))
 	elif [ "${engine}" == "spark" ]; then
 		port=$((${port} + 1))
 	elif [ "${engine}" == "realvirtuality" ]; then
-		queryport=$(grep -s steamqueryport= "${servercfgfullpath}"|grep -v //|tr -d '\r'|tr -cd [:digit:])
+		queryport=$(grep -s steamqueryport= "${servercfgfullpath}"|grep -v //|tr -d '\r'|tr -cd '[:digit:]')
 		port=${queryport}
 	elif [ "${engine}" == "unity3d" ]; then
-		gameport=$(grep ServerPort "${servercfgfullpath}"|tr -cd [:digit:])
+		gameport=$(grep ServerPort "${servercfgfullpath}"|tr -cd '[:digit:]')
 		port=$((${gameport} + 1))
 	fi
 	fn_printinfo "Detected gsquery.py"
diff --git a/functions/fn_start b/functions/fn_start
index 8bb90da71..66d9ae355 100644
--- a/functions/fn_start
+++ b/functions/fn_start
@@ -2,7 +2,7 @@
 # LGSM fn_start function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-# Version: 291015
+# Version: 301015
 
 # Description: Starts the server.
 
@@ -126,11 +126,11 @@ date > "${rootdir}/${lockselfname}"
 cd "${executabledir}"
 tmux new-session -d -s "${servicename}" "${executable} ${parms}" 2> "${scriptlogdir}/.${servicename}-tmux-error.tmp"
 # tmux pipe-pane not supported in tmux versions < 1.6
-if [ "$(tmux -V|sed "s/tmux //"|sed -n '1 p'|tr -cd [:digit:])" -lt "16" ]; then
+if [ "$(tmux -V|sed "s/tmux //"|sed -n '1 p'|tr -cd '[:digit:]')" -lt "16" ]; then
 	echo "Console logging disabled: Tmux => 1.6 required" >> "${consolelog}"
 	echo "http://gameservermanagers.com/tmux-upgrade" >> "${consolelog}"
 	echo "Currently installed: $(tmux -V)" >> "${consolelog}"
-elif [ "$(tmux -V|sed "s/tmux //"|sed -n '1 p'|tr -cd [:digit:])" -eq "18" ]; then
+elif [ "$(tmux -V|sed "s/tmux //"|sed -n '1 p'|tr -cd '[:digit:]')" -eq "18" ]; then
 	echo "Console logging disabled: Bug in tmux 1.8 breaks logging" >> "${consolelog}"
 	echo "http://gameservermanagers.com/tmux-upgrade" >> "${consolelog}"
 	echo "Currently installed: $(tmux -V)" >> "${consolelog}"
diff --git a/functions/fn_update_check b/functions/fn_update_check
index 9f289fe29..f41203b50 100644
--- a/functions/fn_update_check
+++ b/functions/fn_update_check
@@ -2,7 +2,7 @@
 # LGSM fn_update_check function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-# Version: 281015
+# Version: 301015
 
 # Description: Checks if a server update is available.
 
@@ -219,7 +219,7 @@ ts3arch=$(ls $(find ${filesdir}/ -name 'ts3server_*_*' 2> /dev/null | grep -v 't
 wget "http://dl.4players.de/ts/releases/?C=M;O=D" -q -O -| grep -i dir | egrep -o '<a href=\".*\/\">.*\/<\/a>' | egrep -o '[0-9\.?]+'|uniq > .ts3_version_numbers_unsorted.tmp
 
 # removes digits to allow sorting of numbers
-cat .ts3_version_numbers_unsorted.tmp |tr -cd "[:digit:][*\n]" > .ts3_version_numbers_digit.tmp
+cat .ts3_version_numbers_unsorted.tmp |tr -cd '[:digit:][*\n]' > .ts3_version_numbers_digit.tmp
 # Sorts numbers in to correct order
 # merges two files in to one with two columns sorts the numbers in to order then only outputs the second to the ts3_version_numbers.tmp
 paste .ts3_version_numbers_digit.tmp .ts3_version_numbers_unsorted.tmp |sort -rn|awk '{ print $2 }' > .ts3_version_numbers.tmp
@@ -253,8 +253,8 @@ else
 fi
 
 # Removes dots so if can compare version numbers
-currentbuilddigit=$(echo "${currentbuild}"|tr -cd "[:digit:]")
-availablebuilddigit=$(echo "${availablebuild}"|tr -cd "[:digit:]")
+currentbuilddigit=$(echo "${currentbuild}"|tr -cd '[:digit:]')
+availablebuilddigit=$(echo "${availablebuild}"|tr -cd '[:digit:]')
 if [ "${currentbuilddigit}" -ne "${availablebuilddigit}" ]; then
 	echo -e "\n"
 	echo -e "Update available:"