What are grep patterns?
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how to change a normal file into hidden file
What do chmod command do?
Give the command to display space usage on the UNIX file system.
Is there any command in Unix, other than:ls, to list the files in a directory? The answer will be highly appreciated...
distinguish between user mode and kernel mode?
Why is it called grep?
what is the difference between SED and GREP ? Which one is more better and why?
What is ctrl d?
What is the syntax of grep command and what is its use?
to list a particular line in the file
Which unix command to make a new directory?
The rm command removes links to file. What does this mean? How then is a file deleted from the file system?