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How to create file using cat in Ubuntu?

Hello friends, I am writing this blog which will let you know how to create a file using cat command. Using cat to create a file cat is useful for creating a file. Enter the command cat, followed by the > (the right chevron) character an...

What is umask command?

Umask is a number which define the default permissions that is not given on a file or any directory. How to Calculate Umask: We can subtract the umask from the base permissions to determine the final permission to any file. Please see b...

Various options of ls command in Linux

Output of most of the commands in Linux can be modified by using options/switches. ls command is also not an exception. ls command is used to list the contents of a directory. It has lots and lots of switches to customize its output. Switches...
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