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QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
Utilities & Libraries
Utilities Reference
T
tee (target)
Copy stdin to each listed file and to stdout (POSIX, toybox)

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
- Quickstart Guide
- System Architecture
  The System Architecture guide accompanies the QNX OS and is intended for both application developers and end-users.
- OS Components & Operations
- Graphics
- Programming
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX OS system and developers who want to create a QNX OS resource manager free from vulnerabilities.
- Utilities & Libraries
  - C Library Reference
  - Devctl and Ioctl Commands
  - JSON Library Reference
  - PAM Reference
  - QNX Helpers Developer's Guide
    These libraries provide QNX helpers, including helpers that assist with logging, string conversion, and number and type sizes.
  - SPI Framework Technote
  - QNX Cryptography Library
    The QNX Cryptography Library (qcrypto) is a flexible cryptography framework that allows you to choose which cryptography provider responds to requests on a per-process basis.
  - QNX devcrypto Service
  - Utilities Reference
    - Utility Conventions
    - A
    - B
    - C
    - D
    - E
    - F
    - G
    - H
    - I
    - J
    - K
    - L
    - M
    - N
    - O
    - P
    - Q
    - R
    - S
    - T
      - tail (host)
        Copy the last part of files (POSIX)
      - tail (target)
        Copy last lines from files to stdout (POSIX, toybox)
      - tar
        Create, extract, or list files in a .tar (or compressed t?z) file (POSIX, toybox)
      - tcpdump
        Dump traffic on a network
      - tee (host)
        Duplicate standard input (POSIX)
      - tee (target)
        Copy stdin to each listed file and to stdout (POSIX, toybox)
      - termdef
        Display or set the terminal type (QNX)
      - test
        Return true or false by performing tests (POSIX, toybox)
      - tic
        Terminfo compiler (UNIX)
      - time
        Report execution time of a command (POSIX, toybox)
      - timeout
        Run command line as a child process (POSIX, toybox)
      - timestamp
        Write a timestamp to indicate when an event or action occurred
      - top
        Display system usage (Unix)
      - touch (host)
        Change file access and modification times (POSIX)
      - touch (target)
        Update the access and modification times of each file to the current time (POSIX, toybox)
      - toybox
        Access common command line utilities
      - tr (host)
        Translate characters (POSIX)
      - tr (target)
        Translate, squeeze, or delete characters (POSIX, toybox)
      - tracelogger
        Log tracing information into an event file
      - traceprinter
        Display the contents of the instrumented kernel trace file
      - traceroute
        Print the route packets take to network host
      - traceroute6
        Print the route IPv6 packets take to the destination
      - true (host)
        Return true value (POSIX)
      - true (target)
        Return zero (POSIX, toybox)
      - truncate
        Set length of file(s) (POSIX, toybox)
      - tty
        Show filename of terminal connected to stdin (POSIX, toybox)
    - U
    - V
    - W
    - X
    - Y
    - Z
    - Commonly Used Environment Variables
    - Selecting the Target System
    - Glossary
  - WPA Control Interface Reference
    This document provides a reference for the Wi-Fi Protected Access (WPA) control interface, which provides a C API for the WPA/IEEE 802.11i protocols in Wi-Fi client stations. Application developers who want to control WPA operations and get associated status and event data should read this reference.
- Migrating to QNX OS 8.0
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX OS in the Amazon cloud environment.
QNX Toolkit for Visual Studio Code
This User's Guide describes the QNX^® Toolkit for Visual Studio Code. The guide introduces you to the QNX Toolkit by explaining the QNX development environment and how to build, run, and debug your QNX^® Operating System (OS) applications and systems.
QNX Hypervisor User's Guide
This User's Guide explains the QNX hypervisor architecture and provides instructions for installing and running a QNX Hypervisor system, changing system components and configuration, and using hypervisor features such as virtual devices (vdevs).
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

tee (target)

Copy stdin to each listed file and to stdout (POSIX, toybox)

Syntax:

tee [-ai] [file...]

Runs on:

QNX OS

Options:

-a: Append to files.
-i: Ignore the SIGINT signal.
file: The pathname of the file to copy to.
A filename with the dash character (-) is a synonym for standard input.

Description:

This utility is provided as part of the toybox package. For information on how to enable it, see toybox.

Contributing author:

Rob Landley and the toybox project (see https://landley.net/toybox/).

Page updated: August 11, 2025