ls command

How do I make directory under Linux operating systems using the command prompt (bash shell)?

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How do I find file by date under UNIX and Linux?

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Can you completely explain the nine permissions bits on UNIX or Linux files?

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How do I find out file size under UNIX / Linux operating system and store the same to a variable called s?

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How do I configure or change timezone under OpenBSD operating system?

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Can you tell me an exact location of Linux kernel driver under Linux file system? Where to find all available modules under Linux operating systems?

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Q. How do I list all open files for a Linux or UNIX process using command line options?

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