I am trying to write the debug function below that will display both commands and variables if in debug mode and ask before executing a command. However, the exec command doesn't seem to be working as I inteded. What am I doing wrong?
{
# executing a DOS copy command
&Debug("system(\"copy c:\\oldversion.txt c:\\version.txt \");", 1);
}
sub Debug
{
my ($display, $executeable) = (@_);
if ( $debug == 1 )
{
print "$display\n";
if ($executeable == 1)
{
print "Do you wish to execute? (y/n):";
my $answer = <STDIN>;
chomp($answer);
if ($answer ne "y" && $answer ne "Y" )
{
print "\n";
$executeable = 0;
}
}
}
if ($executeable == 1)
{
eval { $display };
if ($@) # $@ contains the exception that was thrown
{
print "Exception $@";
}
print "$display executed\n";
}
}
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|