Files and probably something simple

[smileyone]

Ok, another problem...<br><br>I need to check if a file exists and if it doesn't exist, I need it to jump out of the loop.&nbsp;&nbsp;I don't know the syntax for checking if a file is there.&nbsp;&nbsp;I've looked in my book and online.&nbsp;&nbsp;I just don't think I'm looking it up correctly.<br><br>Thanks for the help!

 

[smileyone]

Nevermind!!!!&nbsp;&nbsp;I got it.

 

[MikeLacey]

Post the answer then! LOL! <p>Mike<br><a href=mailto:michael.j.lacey@ntlworld.com>michael.j.lacey@ntlworld.com</a><br><a href=

http://www.cargill.com/>

Cargill's Corporate Web Site</a><br>

 

[smileyone]

The easiest way I've seen to do it is....<br><br>open(INFO, filename) ¦¦ die<br><br>in place of die you can put other things, next or last etc.

 

[AndyBo]

If you don't want to open a file to check if it exists, there is a bunch of test operators you can use.&nbsp;&nbsp;Here's a quick summary of the most common:<br><br>-e&nbsp;&nbsp;&nbsp;&nbsp;Does the file exist?<br>-z&nbsp;&nbsp;&nbsp;&nbsp;Is the file zero length?<br>-s&nbsp;&nbsp;&nbsp;&nbsp;Is the file non-zero length?<br>-r&nbsp;&nbsp;&nbsp;&nbsp;Can I read the file?<br>-w&nbsp;&nbsp;&nbsp;&nbsp;Can I write to the file?<br>-x&nbsp;&nbsp;&nbsp;&nbsp;Can I execute the file?<br>-f&nbsp;&nbsp;&nbsp;&nbsp;Is it a standard file?<br>-d&nbsp;&nbsp;&nbsp;&nbsp;Is it a directory?<br>-T&nbsp;&nbsp;&nbsp;&nbsp;Is it a text file?<br>-B&nbsp;&nbsp;&nbsp;&nbsp;Is it a binary file?<br><br>Most of these imply the &quot;-e&quot; test.&nbsp;&nbsp;For example, if you can read a file, then it must exist.&nbsp;&nbsp;Here's a quick example that checks if we can execute a file and if it is a binary file.<br><FONT FACE=monospace><br>#!/usr/bin/perl<br><br>$My_File = &quot;/usr/bin/perl&quot;;<br><br>if ( -B $My_File && -x $My_File ) {<br>&nbsp;&nbsp;&nbsp;&nbsp;print $My_File, &quot; is an executable binary.\n&quot;;<br>}<br></font><br>Hope that helps. <p> <br><a href=mailto: > </a><br><a href= > </a><br>--<br>
0 1 - Just my two bits