What is the nmap command?
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distinguish between interrupts and exceptions?
Explain the read, write, and execute permissions on a UNIX directory.
what are the uses of filters?
What is the first character of the output in ls l command?
which command is used to stop a running process in unix?
What is $0 bash?
Why is it called a shebang?
The command grep first second third /usr/you/myfile a) prints lines containing the words first, second or third from the file /usr/you/myfile b) searches for lines containing the pattern first in the files second, third, and /usr/you/myfile and prints them c) searches the files /usr/you/myfiel and third for lines containing the words first or second and prints them d) replaces the word first with the word second in the files third and /usr/you/myfile e) None of the above
What is the output of : $ ps-e $ ps-a commands
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)?
How to redirect standard error to a file?
what is virtual machine?