---
name: "uwsc"
section: "1"
platform: "linux"
package: "ulfius"
version: "2.7.15-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/uwsc"
---

# uwsc(1)

Command-line websocket client

## NAME

uwsc - Command-line websocket client

## DESCRIPTION

uwsc - Ulfius Websocket Client

Version 0.11

## COPYRIGHT

Copyright 2018-2020 Nicolas Mora \<mail@babelouest.org\>

This program is free software; you can redistribute it and/or modify it under the terms of the MIT LICENSE

Command-line options:

**-o** **--output-log-file**=*PATH*

-

  Print yder log messages in a file

**-x** **--add-header**=*HEADER*

-

  Add the specified header of the form 'key:value'

**-b** **--send-binary-file**=*PATH*

-

  Sends the content of a file at the beginning of the connection in a binary frame

**-t** **--send-text-file**=*PATH*

-

  Sends the content of a file at the beginning of the connection in a text frame

**-i** **--non-interactive-send**

-

  Do not prompt for message sending

**-l** **--non-listening**

-

  Do not listen for incoming messages

**-f** **--fragmentation=**

-

  Specify the max length of a frame and fragment the message to send if required, 0 means no fragmentation, default 0

**-p** **--protocol**=*PROTOCOL*

-

  Specify the Websocket Protocol values, default none

**-e** **--extensions**=*EXTENSION*

-

  Specify the Websocket extensions values, default none

**-s** **--non-secure**

-

  Do not check server certificate

**-q** **--quiet**

-

  Quiet mode, show only websocket messages

**-v** **--version**

-

  Print uwsc's current version

**-h** **--help**

-

  Print this message

## SEE ALSO

The full documentation for **uwsc** is maintained as a Texinfo manual.  If the **info** and **uwsc** programs are properly installed at your site, the command

-

  **info uwsc**

should give you access to the complete manual.