CompTIA Linux+ Guide to Linux Certification (MindTap Course List)
4th Edition
ISBN: 9781305107168
Author: Jason Eckert
Publisher: Cengage Learning
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Chapter 5, Problem 5RQ
Program Description Answer
In the given code snippet, the filesystems that are to be checked on boot by “fsck” command are “/”, “/proc” and “swap”.
Hence, correct answer is option “C”.
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UNix and bash
please write line by line with result and screenshot
Create a directory called dir1. Create 10 files in dir1 in whatever way you would like, and fill them with at least a few lines of text. Record how you did this here.Then, write a bsub command line that will submit a job for each file in dir1 to the express
squeue that simply “cats” the file. The output file (stdout) for each job should be the <filename>.out. That is, the first job should execute the command:
cat file1
and the output should be in file: file1.out
This assignment will involve designing two kernel modules:
1. Design a kernel module that creates a /proc file named /proc/jiffies
that reports the current value of jiffies when the /proc/jiffies file
is read, such as with the command
cat /proc/jiffies
Be sure to remove /proc/jiffies when the module is removed.
2. Design a kernel module that creates a proc file named /proc/seconds
that reports the number of elapsed seconds since the kernel module was
loaded. This will involve using the value of jiffies as well as the HZ
rate. When a user enters the command
cat /proc/seconds
your kernel module will report the number of seconds that have
elapsed since the kernel module was first loaded. Be sure to remove
/proc/seconds when the module is removed.
Consider the following Unix commands and identifies the output of the commands.cp -i file1 file2cp -v file1 file2
Choose an answer
A
Error.
B
The -v option provides interactive copying with warning messages and the -i option displays informative messages.
C
The -v option is used to updates the newly created file to the destination file and -i is used for informative messages.
D
The -i option provides interactive copying with warning messages and the -v option displays informative messages.
Chapter 5 Solutions
CompTIA Linux+ Guide to Linux Certification (MindTap Course List)
Ch. 5 - Prob. 1RQCh. 5 - After a partition on a hard disk is formatted with...Ch. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - A user mounts a device to a mount point directory...Ch. 5 - Which command is used to display the amount of...Ch. 5 - What must you do to successfully run the fsck...Ch. 5 - Character devices typically transfer data more...Ch. 5 - What does the du /var command do? a. shows the...
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Which of the following statements are true?...Ch. 5 - Prob. 14RQCh. 5 - Which of the following statements regarding LVM...Ch. 5 - Prob. 16RQCh. 5 - You plug a USB flash memory drive into a system...Ch. 5 - Which command mounts all existing filesystems in...Ch. 5 - Prob. 19RQCh. 5 - Which command is used to format a partition on a...
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