get iOS device UDID without xcode or itunes, using linux cmd line

UDID

lsusb -v 2> /dev/null | grep -e "Apple Inc" -A 2

This version works: lsusb -slsusb | grep "Apple" | cut -d ' ' -f 2:lsusb | grep "Apple" | cut -d ' ' -f 4 | sed 's/://' -v | grep iSerial | awk '{print $3}' however you need to add a hyphen after the 8th character like 00001111-01010101010101

The command with fixed formatting:

lsusb -s `lsusb | grep "Apple" | cut -d ' ' -f 2`:`lsusb | grep "Apple" | cut -d ' ' -f 4 | sed 's/://'` -v | grep iSerial | awk '{print $3}'

Instead of backticks, it is possible to use $() notion, which does not confuse markup that much:

lsusb -s $(lsusb | grep "Apple" | cut -d ' ' -f 2):$(lsusb | grep "Apple" | cut -d ' ' -f 4 | sed 's/://') -v | grep iSerial | awk '{print $3}'

lsusb -d 05ac: -v 2>/dev/null | grep iSerial | awk '{print $NF}'

A variation on @GoodMirek response that adds the hypen for you in the right spot(after the 8th character)

lsusb -s $(lsusb | grep "Apple" | cut -d ' ' -f 2):$(lsusb | grep "Apple" | cut -d ' ' -f 4 | sed 's/://') -v | grep iSerial | awk '{print $3}' | sed 's/^\(........\)/\1-/'