Is ‘du’ a command? If so, what is its use?
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How does one process we can start an executable file? How to get the PID process, which we started?
How can we use grep command in unix?
what is the difference between SED and GREP ? Which one is more better and why?
distinguish between interrupts and exceptions?
How do I open a port?
What is the search command in unix?
what is the default signal kill in unix?
What is a Unix signal, and how do you handle them?
How to see unused port number in Solaris?
what is the advaantage of each user having its own copy of the shell?
How can you create a symbolic link to a file or directory?
What is mtime in find command?