Control Serial Ports with cu - Terminal Access & File Transfer | Online Free DevTools by Hexmos

Control serial port access and perform file transfers with the cu command. This powerful Linux utility provides terminal access and data exchange capabilities. Free online tool, no registration required.

cu

Call Up another system and act as a dial-in/serial terminal or perform file transfers with no error checking. More information: https://manned.org/cu.

  • Open a given serial port:

sudo cu {{[-l|--line]}} {{/dev/ttyXYZ}}

  • Open a given serial port with a given baud rate:

sudo cu {{[-l|--line]}} {{/dev/ttyXYZ}} {{[-s|--speed]}} {{115200}}

  • Open a given serial port with a given baud rate and echo characters locally (half-duplex mode):

sudo cu {{[-l|--line]}} {{/dev/ttyXYZ}} {{[-s|--speed]}} {{115200}} {{[-h|--halfduplex]}}

  • Open a given serial port with a given baud rate, parity, and no hardware or software flow control:

sudo cu {{[-l|--line]}} {{/dev/ttyXYZ}} {{[-s|--speed]}} {{115200}} --parity={{even|odd|none}} {{[-f|--nortscts]}} --nostop

  • Exit the cu session when in connection:

<Enter><~><.>

  • Display help:

cu --help