Changed to egrep (faster)

lsusb

@@ -51,7 +51,7 @@ done
 # Each entry will be separated by two '--' lines. We replace them
 # with the '#' symbol in case other parameters that contain a dash
 # will not be interfered
-devices=`grep -B 2 -A 6 "Product ID" sp_info.log | sed 's/^--/#/'`
+devices=`egrep -B 2 -A 6 "Product ID" sp_info.log | sed 's/^--/#/'`
 
 # Change the IFS to #, backup the current one
 OIFS=$IFS
@@ -63,17 +63,17 @@ for device in $devices
 do
 	# Get the name of the device, it is the first line that ends with a ':'
 	# Trim the string at the end
-	name=`echo $device | head -2 | grep ":$"  | sed -e 's/^ *//g' -e 's/ *:$//g'`
+	name=`echo $device | head -2 | egrep ":$"  | sed -e 's/^ *//g' -e 's/ *:$//g'`
 
 	# Get the PID, trim at the end
-	PID=`echo $device | grep "Product ID" | awk -F':' '{print $2}' | sed -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
+	PID=`echo $device | egrep "Product ID" | awk -F':' '{print $2}' | sed -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
 	# If there's no PID then we skip the entry
 	if [ -z "$PID" ]; then
 		continue
 	fi
 
 	# Get the VID, trim at the end
-	VID_all=`echo $device | grep "Vendor ID" | awk -F':' '{print $2}' | sed -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
+	VID_all=`echo $device | egrep "Vendor ID" | awk -F':' '{print $2}' | sed -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
 	# If there's no VID then we skip the entry
 	if [ -z "$VID_all" ]; then
 		continue
@@ -104,13 +104,13 @@ do
 
 	# Get the bus number. For that, grep the last entry that contains "Bus Number" and then trim at the end.
 	# Also remove the 0x from hex numbers
-	bus_num=`grep -B 100 "$PID" sp_info.log | grep "Bus Number" | tail -1 | sed -e 's/Bus Number://' -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
+	bus_num=`egrep -B 100 "$PID" sp_info.log | egrep "Bus Number" | tail -1 | sed -e 's/Bus Number://' -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
 	# Get the device number within the bus, print it as the second entry using '/' as field separator
-	device_num=`echo $device | grep "Location ID" | sed -e 's/Location ID://; s/^ *//g; s/ *$//g;' | awk -F'/' '{print $2}'`
+	device_num=`echo $device | egrep "Location ID" | sed -e 's/Location ID://; s/^ *//g; s/ *$//g;' | awk -F'/' '{print $2}'`
 
 	# Include serial number only if available
 	serial_str=""
-	serial_number=`echo $device | grep "Serial Number" | sed 's/Serial Number: //; s/^ *//g; s/ *$//g'`
+	serial_number=`echo $device | egrep "Serial Number" | sed 's/Serial Number: //; s/^ *//g; s/ *$//g'`
 	if [ -n "$serial_number" ]; then
 		serial_str=" Serial: $serial_number"
 	fi