Define a single-user system.

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Discuss the mount and unmount system calls ?

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How to restrict NULL value in UNIX

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What are the criteria for choosing a process for swapping into memory from the swap device?

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What is the property of unix?

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What is Process id in unix?

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What is a "parameter card" and what is useful for?

1 Answers   Accenture,

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1)How to schedule a job,that will periodically execute in second by crontab? 2)I know only second specific time to execute the job. like 10 10 * * * sleep 40&&ps -l>/dev/pts/1 It will execute at 10:10:40 AM but do not know how to execute 15 second,30 second so on at 10:10 am.

3 Answers   Qwest,

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Describe the term directory?

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i have one column with data smith john michale the o/p should be smith,john,michale how we do in unix

6 Answers   Wipro,

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how you know the ip address of user system?

9 Answers   Polaris,

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Is it possible to see information about a process while it is being executed?

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