The head command writes the how many lines of a file to screen?
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How to root mirror in Linux? How to replace mirrored hdd in case of failure?
How to hide the partition in GRUB booting? (This technique is required when you have more that one Windows system on different partitions of the same disk, let us say the first and second partitions of the first hard drive, to boot from the first partition you must hide the second one)
How do I list directories in linux?
How compile c++ program in cmd?
What is df -h command?
How often do you use grep command and how in Linux operating system?
what do know about commands?
If the programmer wishes to execute an instruction at the specified time. Which command is used?
What is grep command in linux with examples?
What is df command in unix?
Explain about refer?
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