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POHow to output only the latest screen with php exec?
 

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  1. POHow to output only the latest screen with php exec?
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    <p>My problem is: </p> <p>I have large output files generated with the exec command. I have about 800-1500 MB of text output, because it's appended to my text file every second. How could I only write the last piece of data to my text file?</p> <p>This is how I'm doing it now:</p> <pre><code>$cmd = 'btdownloadheadless --saveas /var/www/virtual/tigyisolutions.hu/boxy/htdocs/downloaded_torrent/'.$kovNev.'/ '.$_REQUEST["torrent"]; exec(sprintf("%s &gt; %s 2&gt;&amp;1 &amp; echo $! &gt;&gt; %s", $cmd, $outputfile, $pidfile)); </code></pre> <p>I would like to see this in my output file:</p> <pre><code>saving: Test torrent (1115.9 MB) percent done: 19.8 time left: 22 min 04 sec download to: /var/www/virtual/tigyisolutions.hu/boxy/htdocs/downloaded_torrent/uid1_fil_1370552248/ download rate: 1344.1 kB/s upload rate: 115.7 kB/s share rating: 0.121 (26.8 MB up / 221.3 MB down) seed status: 81 seen now, plus 3.994 distributed copies peer status: 18 seen now, 45.3% done at 2175.4 kB/s </code></pre> <p>And not this:</p> <pre><code>saving: Test torrent (1115.9 MB) percent done: 19.8 time left: 22 min 04 sec download to: /var/www/virtual/tigyisolutions.hu/boxy/htdocs/downloaded_torrent/uid1_fil_1370552248/ download rate: 1344.1 kB/s upload rate: 115.7 kB/s share rating: 0.121 (26.8 MB up / 221.3 MB down) seed status: 81 seen now, plus 3.994 distributed copies peer status: 18 seen now, 45.3% done at 2175.4 kB/s saving: Test torrent (1115.9 MB) percent done: 19.8 time left: 22 min 04 sec download to: /var/www/virtual/tigyisolutions.hu/boxy/htdocs/downloaded_torrent/uid1_fil_1370552248/ download rate: 1344.1 kB/s upload rate: 115.7 kB/s share rating: 0.121 (26.8 MB up / 221.3 MB down) seed status: 81 seen now, plus 3.994 distributed copies peer status: 18 seen now, 45.3% done at 2175.4 kB/s saving: Test torrent (1115.9 MB) percent done: 19.8 time left: 22 min 04 sec download to: /var/www/virtual/tigyisolutions.hu/boxy/htdocs/downloaded_torrent/uid1_fil_1370552248/ download rate: 1344.1 kB/s upload rate: 115.7 kB/s share rating: 0.121 (26.8 MB up / 221.3 MB down) seed status: 81 seen now, plus 3.994 distributed copies peer status: 18 seen now, 45.3% done at 2175.4 kB/s ...etc... </code></pre> <p>So I would like to see only the latest screen. My bash command append the output txt an not rewriting it. I want to rewrite it.</p>
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    1. UStigyi janos
    1. UStigyi janos
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      1. POHow to output only the latest screen with php exec?
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    1. COI have found this: http://tldp.org/LDP/abs/html/io-redirection.html It's writting about this bash thing, but I don't understood why my bash script append that txt and not only delete it and create new..
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      1. POHow to output only the latest screen with php exec?
      1. UStigyi janos
    2. COWhat command is in `$cmd` and what do you mean by `last piece of data` : Last line of output of `$cmd`, last character of output of `$cmd` or `$!`?
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      1. POHow to output only the latest screen with php exec?
      1. USSamveen
    3. CO`$cmd = 'btdownloadheadless --saveas /var/www/virtual/tigyisolutions.hu/boxy/htdocs/downloaded_torrent/'.$kovNev.'/ '.$_REQUEST["torrent"];` ... This is my cmd $_REQUEST["torrent"] is an url of a torrent file.
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      1. POHow to output only the latest screen with php exec?
      1. UStigyi janos
 

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