For linux What is the function of "whoami" command? What is the function of "ls" command? What is the name of the default desktop environment of Ubuntu 12.04? Write the necessary commands to display the list of the files ending with txt under the current working directory.
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- Write a single Linux pipeline command to display the last 20 filenames in your home directory (non hidden) that match the pattem file (uppercase or lowercase). You can use any directory pathname.user whose ID is beilish is working in a typical Linux system. She issues the command "pwd"and the response is "/home/beilish/alpha/config". She now wants to work in the directory /home/beilish/beta/test. Show three (3) different commands,any of which the user could issue to move from the first directory to the second,and for each command briefly explain how it works. Note: Each command must be independent, not relying on any prior command.Please log in as “root” and create a new directory called “myScripts”on your desktop (i.e., /root/Desktop).Please leave a comment with your name at the end of each of your script files. You can use “#” to insertcomments in your script. Write a script and save it as /root/Desktop/exercise1. This script performs the followingfunctions:a. Asks the user for the length and width (in feet) of a rectangular roomb. Calculates the area of the roomc. Displays the result to the userRun the script in terminal using the command: bash /root/Desktop/exercise1 SO I HAVE WROTE THE SCRIPT BUT I DON'T KNOW HOW TO SAVE IT TO EXERCISE1 AND DISPLAY IT, JUST NEED TELL ME HOW TO DO IT , NO NEED SCRIPT
- [ Question related to Aws Ec2] When We Host Webserver On Ec2 Linux Instance,We can access it from Putty Right? But We can do the same task using Windows Command prompt also . Since windows and Linux both have different syntax, How's This Possible to access from Command prompt itself?Write Linux command for each question. Please use one single command to do following process. PLEASE GIVE EXPLANATION TOO. Q4: Move <myfile.txt> to the directory “ET506” with name <file.txt> Q5: Delete <file.txt> Q6: Delete directory <ET506HW> Q7: Rename <root_file.txt> to <root_new_file.txt> Q8: Create five files name “file1.txt”, “file2.txt”, “file3.c”, “file4.cpp”, “file5.html”. Q9: List all files end with “.txt” Q10: List all files contain “file” Q11: Move every file with name contain “file” to directory “ET506”[ Question related to Aws Ec2] When We Host Webserver On Ec2 Linux Instance ,We can access it from Putty Right? But We can do the same task using Windows Command prompt also . Since windows and Linux both have different syntax,How's This Possible to access from Command prompt itself?
- Please give me the answers for these question below: To upgrade Windows PowerShell to a newer version, we need to download and install this! To update the Windows PowerShell Help System, we should use this SwitchParameter with the Update-Help cmdlet because PowerShell only updates the help files once every 24 hours. If we want to find all cmdlets in the ActiveDirectory module, we should use this parameter with the Get-Command cmdlet to filter our query. Name two aliases for the Get-ChildItem cmdlet.On the cmsy255 server, write a bash shell script called usrinfo that displays information about a specified user. Make sure the script file is executable. Also make sure that you can run the script without having to specify the directory. For example, you should NOT have to enter ./usrinfo in order for it to run. The script should: ● ● ● Accept 1 argument from the command line (this is the User ID that you want to display info for) finger the User ID display any lines from the who command that match this User ID display any lines from the ps -ef command that match this User ID In addition, if the number of arguments is not exactly 1, display an appropriate error message and exit with an exit code of 1.Review the firewall ruleset shown below. If a system at 10.18.100.3 attempts an SSH (Secure shell) connection to the server at 192.168.10.5, what would be the result? (Analyze the rules carefully) Rule Source IP 1 2 3 4 any any 10.18.100.3 any Source Port any any any any Dest IP 192.168.10.5 192.168.10.6 192.168.10.6 any The traffic will be blocked by rule 4 The traffic will be blocked by rule 3 O The traffic will be allowed by rule 2 The traffic will be allowed by rule 1 Dest Port 1443 1521 22 any Action allow allow deny deny
- Please help with homework in Linux in Debian How does cron know the proper EUID to use when running commands in a user's crontab file? The /etc/crontab file? How can you force the cron daemon to update its crontable in memory? (hint: look at last week's lecture on signals and processes and find the signal that causes a daemon to reload its configuration)Nearly all of the concepts presented in this chapter apply to all Linux distributions.However, different Linux distributions may use different default environment files. Bootyour Ubuntu Server Linux virtual machine and view the hidden environment files in yourhome directory. Which two files are used to store environment variables and aliasesfor each Ubuntu user by default? View their contents. Is there a /etc/profile and /etc/bashrcfile by default? If not, what are they called? View the contents of both of these files.In many cases you will likely get better information by simply looking closely at the output you got when trying out the command in the other window. What command could you use to list the files in your fileAsst directory, using an absolute path to the fileAsst directory as part of your command? What command could you use to list the text files (only) in your fileAsst directory, using a relative path to the fileAsstdirectory as part of your command? The /usr/include directory contains a large number of C/C++ header files (all ending with a .h extension). What command would you give to list the names of the header files in that directory that include the string “it” as part of the name? One of the files you should now have in your fileAsst directory is TweedleDee/hatter.txt. Suppose that you wished to copy that file into your current (commandsAsst) directory. What command would you give to make that copy? For this, and for the following questions, You will want to delete all…