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Full Discussion: Passing asterisk As A Parameter
Top Forums Shell Programming and Scripting Passing asterisk As A Parameter Post 302214007 by indiansoil on Friday 11th of July 2008 05:08:54 PM
Old 07-11-2008
Error Passing asterisk As A Parameter
I have written a Shell Script Program which accepts 3 parameters as shown below:

Code:
./calc 20 + 2

in the above line ./calc is the Shell Script itself with 3 parameters, namely:

20
+
and 2.

Well, now let's look inside the Script:

Code:
result=$1$2$3
echo $result

The output will be as per our expectation:

Code:
22

But well, let's change the sign in the 2nd parameter being passed:

Code:
./calc 20 - 2

Code:
./calc 20 / 2

All those there examples have no issues so far!

But when we pass * as a parameter
Code:
./calc 20 * 2

things go bad!

Instead of *, the result of "ls *" command or simply the directory list gets passed to the variable: $2.

So, how can I make this Calculator program a user friendly one? I have been suggested to use '*' (I have not tried it yet, however) but it doesn't seem to be a User Friendly Way of writing any script or program, does it?

Thanks!

Dev.
 

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LEARN ABOUT PHP

svn_checkout

SVN_CHECKOUT(3) 							 1							   SVN_CHECKOUT(3)

svn_checkout - Checks out a working copy from the repository

SYNOPSIS

       bool svn_checkout (string  $repos, string  $targetpath, [int  $revision], [int  $flags])

DESCRIPTION

	Checks out a working copy from the repository at $repos to $targetpath at revision $revision.

PARAMETERS

	      o $repos
		- String URL path to directory in repository to check out.

	      o $targetpath
		- String local path to directory to check out in to

	      Note

		     Relative  paths  will  be	resolved  as if the current working directory was the one that contains the PHP binary. To use the
		     calling script's working directory, use realpath(3) or dirname(__FILE__).

	      o $revision
		- Integer revision number of repository to check out. Default is HEAD, the most recent revision.

	      o $flags
		- Any combination of SVN_NON_RECURSIVE and SVN_IGNORE_EXTERNALS.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

NOTES

       Warning

	      This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice	in
	      a future release of PHP. This function should be used at your own risk.

EXAMPLES

       Example #1

	      Basic example

	       This example demonstrates how to check out a directory from a repository to a directory named calc:

	      <?php
	      svn_checkout('http://www.example.com/svnroot/calc/trunk', dirname(__FILE__) . '/calc');
	      ?>

	       The  dirname(__FILE__)  call  is necessary in order to convert the calc relative path into an absolute one. If calc exists, you can
	      also use realpath(3) to retrieve an absolute path.

SEE ALSO

       svn_add(3), svn_commit(3), svn_status(3), svn_update(3), SVN documentation on svn checkout.

PHP Documentation Group 													   SVN_CHECKOUT(3)
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