Can you explain a little bit about command substitution?
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what is mount ,tell me about mount ,how can u use in real time project??
Assume the following files are in the working directory prompt> ls -l tasks -rw-r--r-- 1 alex student 1423 Feb 21 14:01 tasks What command can Alex use to give everyone permission to write to the file? What will the ls -l command display if he does so?
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Briefly, how do you install Oracle software on UNIX.
how will you login one server's shell prompt to an another server?
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How do I use nslookup?
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what is kernel?
Unix Commands 
