Few Important doubts and questions..(Unix/Shell)

Shell Programming and Scripting
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Hi All,

I have a few questions which I am unable to solve/answer.

Please help me with them:-

  1. Command in Unix to determine if a Host is connected to the internet ?
  2. If a parenet process is killed what happens to the child process?
  3. How do I print the first 10 lines of a file in the command line?
  4. How do I refer to arguments passed to a Shell Script?
  5. How do I search for a string in a directory with subdirectories recursed?
  6. How do I view the contents of a very large error file?
  7. What is the command to list files in a directory in decreasing order of file size?
  8. What is the shell command to find all the Java files in a nested directory structure?
  9. What is the difference between SLEEP and WAIT?

Thanks in advance for your help and time.

Regards,
Shubh.

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