---
name: "nxsh"
section: "1"
platform: "linux"
package: "nsf-shells"
version: "2.4.0-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nxsh"
---

# nxsh(1)

Simple shell containing NSF/NX interpreter

```

```

## NAME

nxsh - Simple shell containing NSF/NX interpreter

## SYNOPSIS

**nxsh** ?**-c** ?*arg1*?? ?*arg2* ...?

```

```

## DESCRIPTION

- **nxsh** ?**-c** ?*arg1*?? ?*arg2* ...?

  **nxsh** is a shell-like application that reads NX and Tcl commands from different sources and evaluates them.

  If invoked without any arguments, **nxsh** runs in read-eval-print mode (REPL, interactive) similar to **tclsh**. In this mode, it reads commands from standard input interactively and prints command results as well as error messages to standard output. It remains active until the exit command is invoked or until it reaches end-of-file on its standard input.

  If invoked with at least one positional argument *arg1*, **nxsh** runs a NX/Tcl script sourced from a file identified by *arg1* using **source**.

  Passing the **-c** flag makes **nxsh** accept commands from the command line provided by *arg1*. If *arg1* is omitted, **nxsh** takes commands from standard input (e.g., in a pipe).

  **nxsh** can be used like **tclsh** to make NX scripts directly invocable from the shell, by providing the following first line ("shebang") in the respective script:

  ```
  	#! /usr/bin/env nxsh
  ```

-

  A (more portable) alternative is:

  ```
  	#! /bin/sh
  	# the next line restarts using nxsh \
  	    exec nxsh "$0" "$@"
  ```

## COPYRIGHT

```
Copyright (c) 2014-16 Stefan Sobernig <stefan.sobernig@wu.ac.at>, Gustaf Neumann <gustaf.neumann@wu.ac.at>; available under the Creative Commons Attribution 3.0 Austria license (CC BY 3.0 AT).
```