What does $? Mean in unix?
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What is buffer header unix?
Differentiate between absolute and related path?
What are drawbacks of ssh v2?
What is page fault? Its types?
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.
What is unix mtime?
What is the difference between soft link and hard link in Unix operating system ?
Explain a path in unix.
What is home directory in unix?
How do I search for a grep file in unix?
What is unix portability?
How do you sort in unix?