how many internal commands is there in UNIX?
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What is the procedure of "at" and crontab" commands?
what is exact definition of operating system?
What do you mean by zambie process?
Explain mount and unmount command.
which command is used to identify the type of the file?
How do you find which version and name of unix you are using at the command prompt?
What is used to type command?
In UNIX, what is the command to kill a process?
distinguish between physical addresses and logical address?
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How do you copy a directory with many files and folders into another directory?
Explain iostat, vmstat and netstat.
What is the command to find hidden files in the current directory?