title: Vm virtualbox ubuntu, cant run .c file from terminal
body: <p>I have the file example_action.c in example folder. </p>
  
  <p>In terminal I enter</p>
  
  <p>cd example</p>
  
  <p>ls</p>
  
  <p>and it shows example_action.c example.file</p>
  
  <p>I am then trying to run the example_action.c over example.file and output the result.</p>
  
  <p>./example_action example.file result.file</p>
  
  <p>but every variation I try gives a different error.</p>
  
  <p>bash:example_action not found</p>
  
  <p>command not recognised</p>
  
  <p>and so on.</p>
  
  <p>Do I need to install something to make this work?</p>
  
  <p>Thanks for any help.</p>