What difference between cmp and diff commands?
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What are the differences among a system call, a library function, and a unix command?
What is the difference between cat command and more command?
Is it inbetween or in between?
Give a regular expression that finds two things, try to come up with regular expressions that find each individually using "egrep" command?
What does the “echo” command do?
What is the command to check ports active in UNIX?
How do I run a bash script?
What does pipe () return?
What is awk good for?
What happens when we execute a unix command?
What is the use of the tee command?
in UNIX,How to copy file into directory?