176 lines
5.3 KiB
Groff
176 lines
5.3 KiB
Groff
'\" t
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.\" Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved.
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.\" Arch: generic
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.\" Software: JDK 8
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.\" Date: 21 November 2013
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.\" SectDesc: Scripting Tools
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.\" Title: jrunscript.1
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.\"
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.if n .pl 99999
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.TH jrunscript 1 "21 November 2013" "JDK 8" "Scripting Tools"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH NAME
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jrunscript \- Runs a command-line script shell that supports interactive and batch modes\&. This command is experimental and unsupported\&.
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.SH SYNOPSIS
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.sp
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.nf
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\fBjrunscript\fR [\fIoptions\fR] [\fIarguments\fR]
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.fi
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.sp
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.TP
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\fIoptions\fR
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The command-line options\&. See Options\&.
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.TP
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\fIarguments\fR
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Arguments, when used, follow immediately after options or the command name\&. See Arguments\&.
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.SH DESCRIPTION
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The \f3jrunscript\fR command is a language-independent command-line script shell\&. The \f3jrunscript\fR command supports both an interactive (read-eval-print) mode and a batch (\f3-f\fR option) mode of script execution\&. By default, JavaScript is the language used, but the \f3-l\fR option can be used to specify a different language\&. By using Java to scripting language communication, the \f3jrunscript\fR command supports an exploratory programming style\&.
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.SH OPTIONS
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.TP
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-classpath \fIpath\fR
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.br
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Indicate where any class files are that the script needs to access\&.
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.TP
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-cp \fIpath\fR
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.br
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Same as \f3-classpath\fR\f3path\fR\&.
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.TP
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-D\fIname\fR=\fIvalue\fR
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.br
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Sets a Java system property\&.
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.TP
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-J\fIflag\fR
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.br
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Passes \f3flag\fR directly to the Java Virtual Machine where the \f3jrunscript\fR command is running\&.
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.TP
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-I \fIlanguage\fR
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.br
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Uses the specified scripting language\&. By default, JavaScript is used\&. To use other scripting languages, you must specify the corresponding script engine\&'s JAR file with the \f3-cp\fR or \f3-classpath\fR option\&.
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.TP
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-e \fIscript\fR
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.br
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Evaluates the specified script\&. This option can be used to run one-line scripts that are specified completely on the command line\&.
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.TP
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-encoding \fIencoding\fR
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.br
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Specifies the character encoding used to read script files\&.
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.TP
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-f \fIscript-file\fR
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.br
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Evaluates the specified script file (batch mode)\&.
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.TP
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-f -
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.br
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Reads and evaluates a script from standard input (interactive mode)\&.
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.TP
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-help
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.br
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Displays a help message and exits\&.
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.TP
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-?
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.br
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Displays a help message and exits\&.
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.TP
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-q
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.br
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Lists all script engines available and exits\&.
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.SH ARGUMENTS
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If arguments are present and if no \f3-e\fR or \f3-f\fR option is used, then the first argument is the script file and the rest of the arguments, if any, are passed to the script\&. If arguments and \f3-e\fR or the \f3-f\fR option are used, then all arguments are passed to the script\&. If arguments, \f3-e\fR and \f3-f\fR are missing, then interactive mode is used\&. Script arguments are available to a script in an engine variable named \f3arguments\fR of type \f3String\fR array\&.
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.SH EXAMPLES
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.SS EXECUTE\ INLINE\ SCRIPTS
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.sp
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.nf
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\f3jrunscript \-e "print(\&'hello world\&')"\fP
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.fi
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.nf
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\f3jrunscript \-e "cat(\&'http://www\&.example\&.com\&')"\fP
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.fi
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.nf
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\f3\fP
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.fi
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.sp
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.SS USE\ SPECIFIED\ LANGUAGE\ AND\ EVALUATE\ THE\ SCRIPT\ FILE
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.sp
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.nf
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\f3jrunscript \-l js \-f test\&.js\fP
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.fi
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.nf
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\f3\fP
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.fi
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.sp
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.SS INTERACTIVE\ MODE
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.sp
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.nf
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\f3jrunscript\fP
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.fi
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.nf
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\f3js> print(\&'Hello World\en\&');\fP
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.fi
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.nf
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\f3Hello World\fP
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.fi
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.nf
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\f3js> 34 + 55\fP
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.fi
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.nf
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\f389\&.0\fP
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.fi
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.nf
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\f3js> t = new java\&.lang\&.Thread(function() { print(\&'Hello World\en\&'); })\fP
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.fi
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.nf
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\f3Thread[Thread\-0,5,main]\fP
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.fi
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.nf
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\f3js> t\&.start()\fP
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.fi
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.nf
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\f3js> Hello World\fP
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.fi
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.nf
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\f3\fP
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.fi
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.nf
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\f3js>\fP
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.fi
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.nf
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\f3\fP
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.fi
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.sp
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.SS RUN\ SCRIPT\ FILE\ WITH\ SCRIPT\ ARGUMENTS
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The test\&.js file is the script file\&. The \f3arg1\fR, \f3arg2\fR and \f3arg3\fR arguments are passed to the script\&. The script can access these arguments with an arguments array\&.
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.sp
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.nf
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\f3jrunscript test\&.js arg1 arg2 arg3\fP
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.fi
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.nf
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\f3\fP
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.fi
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.sp
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.SH SEE\ ALSO
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If JavaScript is used, then before it evaluates a user defined script, the \f3jrunscript\fR command initializes certain built-in functions and objects\&. These JavaScript built-ins are documented in JsDoc-Toolkit at http://code\&.google\&.com/p/jsdoc-toolkit/
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.RE
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.br
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'pl 8.5i
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'bp
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