PART H 1- What does cd ..do? 2- What does cd ../.. do? 3- If you do cd / followed by pwd, what will happen? 4- What information about a file is shown by ls -laF? 5- In the following example, explain the fields of the output from ls -laF ddir dsp: drwxr-xr-x 22 dave staff 4096 Jan 12 2001 dir/ crw-rw---- 1 root audio 14, 3 Jan 22 2001 dsp 6- If you have two files, a and b, and you issue the command mv a b, what happens? Is there an option to my that will issue a warning in this situation? 7- What is the command to duplicate the contents of /dir1 to /dir2, preserving modification times, ownership and permissions of all files? 8- How do you make the file secret readable and writable by root, readable by the groupwheel and inaccessible to everybody else? 9- How can you remove a directory, including its contents, with a single command? 10- What does chown -R user.user /path/to/directory/ do? 11- How can you recognize symbolic links when using 1s? 12- How can you see what a symbolic link points to? 13- What happens if you attempt to create a symbolic link to a file that doesn't exist?

PART H 1- What does cd ..do? 2- What does cd ../.. do? 3- If you do cd / followed by pwd, what will happen? 4- What information about a file is shown by ls -laF? 5- In the following example, explain the fields of the output from ls -laF ddir dsp: drwxr-xr-x 22 dave staff 4096 Jan 12 2001 dir/ crw-rw---- 1 root audio 14, 3 Jan 22 2001 dsp 6- If you have two files, a and b, and you issue the command mv a b, what happens? Is there an option to my that will issue a warning in this situation? 7- What is the command to duplicate the contents of /dir1 to /dir2, preserving modification times, ownership and permissions of all files? 8- How do you make the file secret readable and writable by root, readable by the groupwheel and inaccessible to everybody else? 9- How can you remove a directory, including its contents, with a single command? 10- What does chown -R user.user /path/to/directory/ do? 11- How can you recognize symbolic links when using 1s? 12- How can you see what a symbolic link points to? 13- What happens if you attempt to create a symbolic link to a file that doesn't exist?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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