How to use javascript code in unix shell? Post: 302599226

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Top Forums Shell Programming and Scripting How to use javascript code in unix shell? Post 302599226 by Corona688 on Thursday 16th of February 2012 12:42:07 PM

02-16-2012

Registered User

The " inside the javascript will be eaten by the shell because they're not escaped. It doesn't know the quotes are supposed to be for javascript, and handles them itself.

Code:

$ echo " window.status = "Redirecting..." + myvar;"
 window.status = Redirecting... + myvar;

$ echo " window.status = \"Redirecting...\" + myvar;"
 window.status = "Redirecting..." + myvar;

$

...but it'll be more efficient and far less typo-prone to do this in a here-document, that will let you plunk it down nearly verbatim:

Code:

cat <<EOF
<script type="text/javascript">"
function exec_refresh()
{
window.status = "Redirecting..." + myvar;
myvar = myvar + " .";"
var timerID = setTimeout("exec_refresh();", 100);
if (timeout > 0)
{
timeout -= 1;
}
else
{
clearTimeout(timerID);
window.status = "";
window.location = "Test.com Web Based Testing and Certification Software v2.0";
}
}
var myvar = "";
var timeout = 20;
exec_refresh();
</script>
EOF

${VARIABLES} and `backticks` will still be substituted inside a here document. Escape ` and $ with \ to avoid it.

Note the ending EOF must be at the beginning of the line, not indented!

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template::plugin::yaml

Template::Plugin::YAML(3pm)				User Contributed Perl Documentation			       Template::Plugin::YAML(3pm)

NAME

       Template::Plugin::YAML - Plugin interface to YAML

SYNOPSIS

	   [% USE YAML %]

	   [% YAML.dump(variable) %]
	   [% YAML.dump_html(variable) %]
	   [% value = YAML.undump(yaml_string) %]
	   [% YAML.dumpfile(filename, variable) %]
	   [% value = YAML.undumpfile(filename) %]

DESCRIPTION

       This is a simple Template Toolkit Plugin Interface to the YAML module.  A YAML object will be instantiated via the following directive:

	   [% USE YAML %]

       As a standard plugin, you can also specify its name in lower case:

	   [% USE yaml %]

METHODS

       These are the methods supported by the YAML object.

   dump( @variables )
       Generates a raw text dump of the data structure(s) passed

	   [% USE Dumper %]
	   [% yaml.dump(myvar) %]
	   [% yaml.dump(myvar, yourvar) %]

   dump_html( @variables )
       Generates a dump of the data structures, as per "dump", but with the characters <, > and & converted to their equivalent HTML entities,
       spaces converted to &nbsp; and newlines converted to <br>.

	   [% USE yaml %]
	   [% yaml.dump_html(myvar) %]

   undump( $string )
       Converts a YAML-encoded string into the equivalent data structure.  Here's a way to deep-copy a complex structure by completely serializing
       the data.

	 [% USE yaml;
	    yaml_string = yaml.dump(complex_data_structure);
	    complex_copy = yaml.undump(yaml_string);
	 %]

   dumpfile( $file, @variables )
       Converts the data to YAML encoding, and dumps it to the specified filepath.

	 [% USE yaml; yaml.dumpfile(".storage", my_data) %]

   undumpfile( $file )
       Loads the YAML-encoded data from the specified filepath

	 [% USE yaml; my_data = yaml.undumpfile(".storage") %]

AUTHORS

       Richard Clamp <richardc@unixbeard.net>, with undump, undumpfile, and dumpfile implementation by Randal L. Schwartz <merlyn@stonehenge.com>

       based on Simon Matthews' Template::Plugin::Dumper

COPYRIGHT

       Copyright 2003, 2008 Richard Clamp All Rights Reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       Template::Plugin::Dumper

perl v5.10.0							    2008-12-15					       Template::Plugin::YAML(3pm)