'\"
'\" Generated from file 'nxsh\&.man' by tcllib/doctools with format 'nroff'
'\" 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)\&.
'\"
.TH "nxsh" 1 2\&.3 nxsh "Command-line interface"
.\" The -*- nroff -*- definitions below are for supplemental macros used
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..
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.ft R
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See the \\*(So manual entry for details on the standard options.
..
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Command-Line Name:	\\fB\\$1\\fR
Database Name:	\\fB\\$2\\fR
Database Class:	\\fB\\$3\\fR
.fi
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.BS
.SH NAME
nxsh \- Simple shell containing NSF/NX interpreter
.SH SYNOPSIS
\fBnxsh\fR ?\fB-c\fR ?\fIarg1\fR?? ?\fIarg2\fR \&.\&.\&.?
.sp
.BE
.SH DESCRIPTION
.TP
\fBnxsh\fR ?\fB-c\fR ?\fIarg1\fR?? ?\fIarg2\fR \&.\&.\&.?
\fBnxsh\fR is a shell-like application that reads NX and Tcl
commands from different sources and evaluates them\&.
.sp
If invoked without any arguments, \fBnxsh\fR runs in
read-eval-print mode (REPL, interactive) similar to \fBtclsh\fR\&. 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\&.
.sp
If invoked with at least one positional argument \fIarg1\fR, \fBnxsh\fR runs
a NX/Tcl script sourced from a file identified by \fIarg1\fR using \fBsource\fR\&.
.sp
Passing the \fB-c\fR flag makes \fBnxsh\fR accept commands from
the command line provided by \fIarg1\fR\&. If \fIarg1\fR is omitted,
\fBnxsh\fR takes commands from standard input (e\&.g\&., in a pipe)\&.
.sp
\fBnxsh\fR can be used like \fBtclsh\fR to make NX scripts directly invokable from the shell, by providing the following first line ("shebang") in the respective script:
.CS


	#! /usr/bin/env nxsh

.CE
.IP
A (more portable) alternative is:
.CS


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

.CE
.PP
.SH COPYRIGHT
.nf
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)\&.

.fi