title: java -cp cronjob doesn't run but manually it does
body: <p>I have scheduled a cronjob on linux , I have made </p>
  
  <pre><code>cron -e
  </code></pre>
  
  <p>I have added my job </p>
  
  <pre><code># m h  dom mon dow   command
  20  12  * * *           java -cp /var/www/hichem/FeedInsertionUnix.jar feed.mmtp.MmtpFeedReceiver 192.168.247.3 20143 output log
  </code></pre>
  
  <p>and I view it clearly with </p>
  
  <pre><code>cron -l
  </code></pre>
  
  <p>the problem is, it doesn't work , I have made it running manually, It does work. 
  what is my problem ?
  [EDIT]
  I have verified more, even simple command doesnt work :-(
  this my crontab</p>
  
  <pre><code># m h  dom mon dow   command
  20  12  * * *           java -cp /var/www/hichem/FeedInsertionUnix.jar feed.mmtp.MmtpFeedReceiver 192.168.247.3 20143 output log
  */2 12-14  * * 1-5      java -jar /var/www/hichem/FeedInsertionUnix.jar
  57  12  * * *           touch /var/www/hichem/test
  </code></pre>