Recent posts to system command resulthttps://forge.codesys.com/forge/talk/Runtime/thread/52794aff26/2020-02-27T16:03:07.937000ZRecent posts to system command resultsystem command result2020-02-27T16:03:07.937000Z2020-02-27T16:03:07.937000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com502d7ce2cd57c7e457fd3512394b43a9819dff0c<div class="markdown_content"><p>that's what I already said:<br/>
It is not possible to get the result to the iec world...but you have a workaround!<br/>
BR <br/>
Edwin</p></div>system command result2020-02-27T16:03:07.053000Z2020-02-27T16:03:07.053000Zlsislsishttps://forge.codesys.com/u/lsislsis/https://forge.codesys.combfaee96a2b31c079da6e86d8b702f9eb746a9cfd<div class="markdown_content"><p>How can I use the command "grep -i serial /proc/cpuinfo | cut -d" " -f2" with chardevice and take the result?</p>
<p>Regards</p></div>system command result2020-02-27T16:03:04.856000Z2020-02-27T16:03:04.856000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.comf6d960998b7d970d9d15e771d48593c5c1c77ee3<div class="markdown_content"><p>Hi,</p>
<p>you can call every shell command but you do not get the result/output of them back to the iec world.<br/>
that's the point, so you need in this case to use the char device example.</p>
<p>Regards<br/>
Edwin</p></div>system command result2020-02-27T16:03:04.085000Z2020-02-27T16:03:04.085000Zlsislsishttps://forge.codesys.com/u/lsislsis/https://forge.codesys.com9f5323e346ff6d29b00c9e7868ad26ffc74aba56<div class="markdown_content"><p>Is there any other way to run OS command and take back the result?<br/>
Because if I use your solution I can't run commands like in shell mode.</p>
<p>Regards</p></div>system command result2020-02-27T16:03:01.858000Z2020-02-27T16:03:01.858000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com60ffa16f08d3fa28a2f29cbf48268e024ec8cd22<div class="markdown_content"><p>Hi,</p>
<p>you need to specify your startpos to read see screenshot.<br/>
BR<br/>
Edwin</p>
<p><img alt="IMG: Startpos.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=858"/></p></div>system command result2020-02-27T16:03:01.073000Z2020-02-27T16:03:01.073000Zlsislsishttps://forge.codesys.com/u/lsislsis/https://forge.codesys.comb4660b30c83233d0e07a733041f2f49fd30fd45f<div class="markdown_content"><p>I try your solution but it gives a result string of 278 characters only, not include the serial number.<br/>
Is there any solution to call from codesys runtime a shell command and take the result?</p>
<p>Regards.</p></div>system command result2020-02-27T16:03:00.275000Z2020-02-27T16:03:00.275000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com2bcf8d040118d811334937eefe202567e499c7e4<div class="markdown_content"><p>Hi,</p>
<p>use this project from this link, and feel free to modify it to your needs:<br/>
l <a class="" href="http://forum.codesys.com/viewtopic.php?f=21&t=5923&p=11084&lan=en" rel="nofollow">viewtopic.php?f=21&t=5923#p11084</a> l </p>
<p>change szFilename: STRING := '/proc/cpuinfo';</p>
<p>and somehow you need to get your information from the buffer which contains then /proc/cpuinfo ... see screenshot<br/>
BR<br/>
Edwin</p>
<p><img alt="IMG: CharDevice.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=856"/></p>
<p><a class="" href="https://forum.codesys.com//download/file.php?id=857" rel="nofollow">RaspberryPI_CharDeviceSnippet3.project <span><span>[143.53 KiB]</span></span></a></p></div>system command result2020-02-27T16:02:58.070000Z2020-02-27T16:02:58.070000Zlsislsishttps://forge.codesys.com/u/lsislsis/https://forge.codesys.com93d75781a8be9f5d8efa0798fbf528553392b13f<div class="markdown_content"><p>Please explain us how we can take return result in Plc application of system commands like:<br/>
"cat /proc/cpuinfo "?</p>
<p>Regards</p></div>