Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
6.0.2 - English

Change language to:
Français - 日本語 - Português - Русский

Please note that the recommended version of Scilab is 2024.1.0. This page might be outdated.
See the recommended documentation of this function

Scilab Help >> Input/Output functions > unix_x


executes some Windows, Linux or MacOS instructions: output in a dedicated window





Single text: instruction(s) Windows, Linux or MacOS to be executed.


unix_x(…) opens a new session of the Operating System (OS) command interpreter (sh with Linux, cmd.exe with Windows, etc..), sends commands to it, lets it processing commands instructions, receives the standard output and possible error message yielded by the processing, and closes the interpreter session.

The starting working directory and environment variables of the opened interpreter are set as described for host().

The standard output returned by the OS interpreter is redirected and displayed in a modeless dedicated window.

If an instruction in commands generates an error,

  • the error message from the OS is displayed in the Scilab console
  • unix_x stops and displays its own error message.
  • In commands, the remaining unprocessed instructions are ignored.
The effects of valid instructions processed before the erroneous one remain actual (for instance, deleted files). However, their standard output is lost: no information window is opened. commands with multiple instructions are not recommended. They are more difficult to debug.


if getos() == 'Windows' then
  unix_x("dir "+""""+WSCI+"modules\graphics\demos"+"""");
  unix_x("ls $SCI/modules/graphics/demos");

See also

  • unix_g — executes some Windows, Linux or MacOS instructions: output in variables
  • unix_s — executes some Windows, Linux or MacOS instructions: output canceled (Silent mode)
  • unix_w — executes some Windows, Linux or MacOS instructions: output in Scilab's console
  • host — executes a Windows, Linux, or MacOS command
  • powershell — executes a command with the Windows powershell interpreter (Windows only)
  • setenv — set the value of an environment variable
  • messagebox — Open a message box.
Report an issue
<< unix_w Input/Output functions writb >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Thu Feb 14 14:57:21 CET 2019