Echo output from ttyUSB port to file

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I'm trying to communicate to a ttyUSB device via Terminal window on Linux Mint 18.2. I'm using commands like



echo -e "D" > /dev/ttyUSB0


for sending my commands and



cat /dev/ttyUSB0


for reading results on another terminal window. Now i'd like to redirect the output of the serial device directly to a text file ( i don't really need to watch the output on a terminal) and i tried with:echo -e "D" > /dev/ttyUSB0 >> ciccio.txt



But is logging just the input i'm sending with echo. Can anyone ease my mind please?




files linux-mint terminal echo output




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  • echo -e "D" > /dev/ttyUSB0 && cat /dev/ttyUSB0 >> ciccio.txt? If the echo to the tty device is successful, read the tty device and redirect it to the file.
    – Raman Sailopal
    Nov 20 '17 at 12:14










  • I managed to display the correct response on the second terminal windows, and to redirect that output to a txt file. But what i'm trying to do is to log the response directly without the need of a second terminal window. If i send my echo and then do a cat upon the device on the same terminal, i'm seeing nothing
    – user3905025
    Nov 20 '17 at 12:40















up vote
0
down vote

favorite












I'm trying to communicate to a ttyUSB device via Terminal window on Linux Mint 18.2. I'm using commands like



echo -e "D" > /dev/ttyUSB0


for sending my commands and



cat /dev/ttyUSB0


for reading results on another terminal window. Now i'd like to redirect the output of the serial device directly to a text file ( i don't really need to watch the output on a terminal) and i tried with:echo -e "D" > /dev/ttyUSB0 >> ciccio.txt



But is logging just the input i'm sending with echo. Can anyone ease my mind please?




files linux-mint terminal echo output




share|improve this question






















  • echo -e "D" > /dev/ttyUSB0 && cat /dev/ttyUSB0 >> ciccio.txt? If the echo to the tty device is successful, read the tty device and redirect it to the file.
    – Raman Sailopal
    Nov 20 '17 at 12:14










  • I managed to display the correct response on the second terminal windows, and to redirect that output to a txt file. But what i'm trying to do is to log the response directly without the need of a second terminal window. If i send my echo and then do a cat upon the device on the same terminal, i'm seeing nothing
    – user3905025
    Nov 20 '17 at 12:40













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm trying to communicate to a ttyUSB device via Terminal window on Linux Mint 18.2. I'm using commands like



echo -e "D" > /dev/ttyUSB0


for sending my commands and



cat /dev/ttyUSB0


for reading results on another terminal window. Now i'd like to redirect the output of the serial device directly to a text file ( i don't really need to watch the output on a terminal) and i tried with:echo -e "D" > /dev/ttyUSB0 >> ciccio.txt



But is logging just the input i'm sending with echo. Can anyone ease my mind please?




files linux-mint terminal echo output




share|improve this question














I'm trying to communicate to a ttyUSB device via Terminal window on Linux Mint 18.2. I'm using commands like



echo -e "D" > /dev/ttyUSB0


for sending my commands and



cat /dev/ttyUSB0


for reading results on another terminal window. Now i'd like to redirect the output of the serial device directly to a text file ( i don't really need to watch the output on a terminal) and i tried with:echo -e "D" > /dev/ttyUSB0 >> ciccio.txt



But is logging just the input i'm sending with echo. Can anyone ease my mind please?





files linux-mint terminal echo output





share|improve this question













share|improve this question




share|improve this question








edited Aug 21 at 0:32









Rui F Ribeiro

35.8k1271114




35.8k1271114










asked Nov 20 '17 at 11:46









user3905025

1




1











  • echo -e "D" > /dev/ttyUSB0 && cat /dev/ttyUSB0 >> ciccio.txt? If the echo to the tty device is successful, read the tty device and redirect it to the file.
    – Raman Sailopal
    Nov 20 '17 at 12:14










  • I managed to display the correct response on the second terminal windows, and to redirect that output to a txt file. But what i'm trying to do is to log the response directly without the need of a second terminal window. If i send my echo and then do a cat upon the device on the same terminal, i'm seeing nothing
    – user3905025
    Nov 20 '17 at 12:40

















  • echo -e "D" > /dev/ttyUSB0 && cat /dev/ttyUSB0 >> ciccio.txt? If the echo to the tty device is successful, read the tty device and redirect it to the file.
    – Raman Sailopal
    Nov 20 '17 at 12:14










  • I managed to display the correct response on the second terminal windows, and to redirect that output to a txt file. But what i'm trying to do is to log the response directly without the need of a second terminal window. If i send my echo and then do a cat upon the device on the same terminal, i'm seeing nothing
    – user3905025
    Nov 20 '17 at 12:40
















echo -e "D" > /dev/ttyUSB0 && cat /dev/ttyUSB0 >> ciccio.txt? If the echo to the tty device is successful, read the tty device and redirect it to the file.
– Raman Sailopal
Nov 20 '17 at 12:14




echo -e "D" > /dev/ttyUSB0 && cat /dev/ttyUSB0 >> ciccio.txt? If the echo to the tty device is successful, read the tty device and redirect it to the file.
– Raman Sailopal
Nov 20 '17 at 12:14












I managed to display the correct response on the second terminal windows, and to redirect that output to a txt file. But what i'm trying to do is to log the response directly without the need of a second terminal window. If i send my echo and then do a cat upon the device on the same terminal, i'm seeing nothing
– user3905025
Nov 20 '17 at 12:40





I managed to display the correct response on the second terminal windows, and to redirect that output to a txt file. But what i'm trying to do is to log the response directly without the need of a second terminal window. If i send my echo and then do a cat upon the device on the same terminal, i'm seeing nothing
– user3905025
Nov 20 '17 at 12:40
















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