What is unix and its components?
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What are the benefits of running processes in the background?
What is standard unix streams ?
What do you understand by the term kernel?
how to kernel protected memory?
Which is the shell of unix?
What does ls lrt in unix?
What is the difference between a shell variable that is exported and the one that is not exported?
How to stop an infinite loop in unix?
What is the property of unix?
What is the full form of unix operating system?
Explain the following statement, “it is not advisable to use root as the default login.”
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.