masayuki2009 commented on PR #8950:
URL: https://github.com/apache/nuttx/pull/8950#issuecomment-1519224791
@no1wudi
I noticed that an unnecessary ^J is shown when running telnet to
esp32-devkitc:wifi_smp.
The symptom also happens with spresense:wifi_smp and spresense:rndis_smp.
```
Trying 192.168.10.30...
Connected to 192.168.10.30.
Escape character is '^]'.
NuttShell (NSH) NuttX-12.0.0
nsh> uname -a^JNuttX 12.0.0 c7a935dc1a Apr 24 2023 09:33:56 xtensa
esp32-devkitc
nsh> cat /proc/uptime^J 46.30
nsh> ps^J PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 0 FIFO Kthread N-- Assigned 0000000000000000
002016 000768 38.0% CPU0 IDLE
1 1 1 0 FIFO Kthread N-- Assigned 0000000000000000
002016 000432 21.4% CPU1 IDLE
2 2 --- 100 RR Kthread --- Waiting Mutex:3 0000000000000000
001984 000904 45.5% lpwork 0x3ffb0570
3 3 0 100 RR Task --- Running 0000000000000000
003008 002584 85.9%! nsh_main
4 4 --- 223 RR Kthread --- Waiting Semaphore 0000000000000000
001984 000680 34.2% rt_timer
5 5 --- 253 RR Kthread --- Waiting MQ empty 0000000000000000
006600 001912 28.9% wifi
6 6 --- 100 RR Task --- Waiting Semaphore 0000000000000000
001992 000952 47.7% telnetd
31 31 --- 100 RR Task --- Waiting Semaphore 0000000000000000
001976 000808 40.8% webserver
43 43 1 100 RR Task --- Running 0000000000000000
003000 002120 70.6% Telnet session
nsh> free^J total used free largest nused
nfree
Umem: 240600 83296 157304 110000 198 8
nsh> ifconfig^Jwlan0 Link encap:Ethernet HWaddr ac:67:b2:71:65:2c at RUNNING
inet addr:192.168.10.30 DRaddr:192.168.10.1 Mask:255.255.255.0
IPv4 TCP UDP ICMP
Received 25ce 259d 0031 0000
Dropped 0000 0000 0000 0000
IPv4 VHL: 0000 Frg: 0000
Checksum 0000 0000 0000 ----
TCP ACK: 0000 SYN: 0000
RST: 0000 0000
Type 0000 ---- ---- 0000
Sent 380a 3808 0002 0000
Rexmit ---- 0005 ---- ----
nsh> exit^JConnection closed by foreign host.
```
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