Explain the following statement, “it is not advisable to use root as the default login.”
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how do you move a backgrounnd job to forward?
Explain about shell aritmetic operators and functions?
What is c shell in unix?
If we are terminated at the middle of the program execution in UNIX,what will happen to the program, it will continue running r terminate r the o/p will be send to your mail?
How to make a new directory in unix?
What are a shell in unix and its types?
What are the links and symbolic links in a unix file system?
What is dev null in unix?
Why unix terminals are called dummy terminals?
Enlist common shells with their indicators.
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 difference between unix and windows operating system?