Which command should you use to find the remaining disk space in unix server?
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How will you know who are the users logged in to the system before 15 minutes?
How to remove a crontab file?
Can you write a command to erase all files in the current directory including all its sub-directories?
Differentiate cmp command from diff command.
Explain ‘system calls’ with respect to unix commands?
what are processor execution levels and priorities?
how unix kernel distinguishes between a normal file and device file ?
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Assume that a file’s permissions give you read and write access. What operations can you perform on the file if it is in a directory which has “r”(read) only process? What operations can you perform on the file if it is in a directory which has “x”(execute) only access?
What is ctrl d?
How do you copy a directory with many files and folders into another directory?
What does this command do,"$more readme.txt“?
What is awk good for?