Das mag er auch nicht 

Code:
root@dm820:~# echo "1:1" | nc -u -w 192.168.0.50 14450 nc: invalid option -- 'u' BusyBox v1.24.1 (2016-11-24 23:17:13 CET) multi-call binary. Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG] Open a pipe to IP:PORT or FILE -l Listen mode, for inbound connects (use -ll with -e for persistent server) -p PORT Local port -w SEC Connect timeout -i SEC Delay interval for lines sent -f FILE Use file (ala /dev/ttyS0) instead of network -e PROG Run PROG after connect
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