Megatest

DEBUG [system xterm]
CELLNAME [system getcellnames.sh]</pre>
</div></div>
<div class="paragraph"><p>When this test is run an xterm will pop up. In that xterm the
environment is exactly that in which the script "getcellnames.sh"
would run. You can now debug the script to find out why it isn&#8217;t
working as expected.</p></div>
<div class="admonitionblock">
<table><tr>
<td class="icon">
<img src="/nfs/pdx/disks/ice.disk.002/icfadm/pkgs/asciidoc/8.6.7/images/icons/note.png" alt="Note">
</td>
<td class="content">This technique can be very helpful in debugging running of EDA tools in Perl, Ruby, Python or tcl scripts:</td>
</tr></table>
</div>
<div class="literalblock">
<div class="title">Perl example</div>
<div class="content monospaced">
<pre>some_code();
$cmdline="virtuoso -some-switches and params ...";
print "$cmdline"; # print the command line so you can paste it into the xterm that pops up
system("xterm");  # this line is added for the debug and removed when done
system($cmdline);
more_code();</pre>
</div></div>
</div>
</div>
<div class="sect2">
<h3 id="_misc_other_debugging_hints">Misc Other Debugging Hints</h3>
<div class="sect3">
<h4 id="_annotating_scripts_and_config_files">Annotating scripts and config files</h4>
<div class="paragraph"><p>Run the "env" command to record the environment:</p></div>
<div class="paragraph"><p>env | sort &gt; stagename.log</p></div>
<div class="paragraph"><p>In a config file:</p></div>
<div class="literalblock">
<div class="title">megatest.config, runconfigs.config and testconfig</div>
<div class="content monospaced">
<pre>#{shell env | sort &gt; stagename.log}

# or

[system env | sort &gt; stagename.log]</pre>
</div></div>
<div class="paragraph"><p>In scripts just insert the commands, this example helps you identify
if "some commands &#8230;" changed any environment variables.:</p></div>
<div class="literalblock">
<div class="title">myscript.sh</div>
<div class="content monospaced">
<pre>env &gt; somefile-before.log
some commands ...
env &gt; somefile-after.log</pre>
</div></div>
<div class="literalblock">
<div class="title">Use meld to examine the differences</div>
<div class="content monospaced">
<pre>meld somefile-before.log somefile-after.log</pre>
</div></div>
<div class="paragraph"><p>Start an xterm to examine the environment, run scripts etc:</p></div>
<div class="paragraph"><p>In a config file:</p></div>
<div class="literalblock">
<div class="title">megatest.config, runconfigs.config and testconfig files</div>
<div class="content monospaced">
<pre>#{shell xterm}  (this blocks)</pre>
</div></div>
<div class="paragraph"><p>Similarly in a script just call the xterm.</p></div>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_how_to_do_things">How To Do Things</h2>
<div class="sectionbody">