What are grep patterns?
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Explain command to display different lines that are found when compare two files?
How do I delete files from command prompt?
What is the general format of unix command syntax?
In Unix file permissions what does the second field denotes?
What is ctrl d?
Why is shebang used?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
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Which is the command used to find out currently executing Process in UNIX?
How can you see the command line history?
Write a command that will output the sorted contents of a file named in.txt and place the output in another file named out.txt, while at the same time excluding duplicate entries.
what are processor execution levels and priorities?
What is the first character of the output in ls l command?