How can we increase heap memory from command line?

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  Mohamed Masud By editing setdomain.env we can change the memory arguments
  Path is domainpath/bin/setdomain.env 
  Open the file in vi
  Find the xmx and xms in that file.here u can change ur heap memory
  Xmx is minimum xms is maximum.
  
  Another way to change heap memory is in console.for that your server might be in node manager. Go to console click servers tab
  Choose server name and click general tab and go to remote start up options and look for the java arguments.