Explanation : /dev/tty is a synonym for the terminal you are currently using.
If echo welcome >/dev/tty, is a part of a shell. welcome will be echoed in the terminal in which the script is run, doesn't matter which terminal it is.
Explanation : /dev/null can be called UNIX built-in dust-bin. To prevent a program from filling the monitor with garbage.
/dev/null comes in handy. Just redirect it to /dev/nul1. It
gladly accepts garbage. It is a universal sink.
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The advantage of binary files over text files is that
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UGC NET Computer Science
Pre PhD Entrance Exam
Kendriya Vidyalaya Sangathan Entrance Exam
Undergraduate Computer Science Examinations
Post Graduate Computer Science Test
PhD Entrance Exam
National Eligibility Test (NET)
State Eligibility Test (SET)
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