How can you see the command line history?
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what is ls -ltd?
What does touch command do in unix?
What will the following command do?
Is there any command in Unix, other than:ls, to list the files in a directory? The answer will be highly appreciated...
what does the command 'wc' do?
Will rm -r* removes hidden files?
what is the advaantage of each user having its own copy of the shell?
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Write a command that will find all text files in a directory such that it does not contain the word "amazing" in any form (that is, it must include the words amazing, amazing, or amazing)?
1-how will you display a file whose name is starting with '- '? 2-how will you add a patten at end of every line in vi editor?
What does pipe () return?
Is ‘du’ a command? If so, what is its use?
Can a process kill itself in UNIX/or in its various versions?
Unix Commands 
