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- Task1: Create a directory say, "Linux user" and it contains three files (e.g.; A, B, C). Change the directory permission first for "user", “group", “others", “all" then change the permission of files residing in the same folder/directory.You have a directory that includes the filenames Bob, Charlie, Charlene, Dick, Derby, Edward, Eddie, and Evangeline. You type in the command “cat E.” The screen will display the contents ofWhat directory can a user be in to access a file using commands with arguments such as: $ more /etc/passwd $ more ~/Study/diary $ more ../Desk/journal $ more Desk/journal
- Several questions regarding the commands and shell programming a) list all files that the name starts/contains with ‘exam’. b) how to get the line count of a file? c) read/write files d) append directory the PATH environment variableWrite the path of your home directory Create a file called 'lab4’with the following lines I am a student of MCBS My major is Currently I am studying CPT 275. Add write permissions to group and others on 'cpt' file. Create a subdirectory called 'funny’ Copy the file 'cpt' into the subdirectory "funny' Delete the directory 'funny'. Copy the file /etc/passwd' to your own home directory and rename as it 'exam0' [This file is the user database file. It contains one line for each user; each line contains seven fields separated by colons. The fields are: username:password:userid:groupid:name:home_directory:shell] Display the contents of the file 'passwd’. Did you find your username?Create the directory “Project” & perform the following actions: a) Create the files ‘f1.txt’, ‘f2.txt’, ‘f3.txt’ and ‘f4.txt’ in it. b) Set the permission of ‘f1.txt’ to -rwx r-- r--, permission of ‘f2.txt’ to -w- r-x r—c) Combine the files f3 and f4 using the paste commandd) Show the use of cut command on any of the above files 2. Write a Shell Script to perform the following: a) Display the files with its access permissionsb) Display the information in megabytes about how the space is allotted in the file system such as used and free space.c) Display the currently running processesd) Display how long the system has been up since the last boot3. Create a shell script to display your name, enrollment ID, the program and the courses you study in this semester. Use the correct variables and display the above to the standard output (screen). 4. Write a bash script that takes the side of a cube as a command line argument and displays the volume of the cube. 5. Write a bash script to…
- UNIX ASSIGNMENT - IXQuestion 2: Write a command to list all the files inside a folder i.e. if there is a folder inside a folder then it should list all files inside the sub-folder which is inside the folder to be listed.1. In an earlier assignment, you created a fileAsst directory containing several files. Give a command that will create a file named listing.dat, in your current (commandsAsst) directory, containing a list of the names of all the files in your fileAsst directory. The listing must not include dates, file sizes, or any information other than the names. 2. Someone has decided that the function sequentialInsert, declared in -cs252/Assignments/commandsAsst/project/arrayops.h, should be renamed orderedInsertion. Give a command to produce the altered version the header file, saving it as ~/UnixCourse/commandsAsst/arrayops.h (Something to think about: Why would the same approach not work well for changing the variable name i to i0?) 3. Sometimes programmers propose changes to an existing software definition and need to know what other code could be affected by the change. Suppose that you are a programmer who has proposed a change to the C/C++ data type known as "timespec". You know that there…A tar file named "male.tar" has several files. One of the files in the archive is "lonnie.yml". Writethe command that will extract ONLY the file named "lonnie.yml". The command CANNOT contain/usefilter commands such as "grep", "sed", etc. The tar file is in the directory /red/white/blue/. Yourcurrent directory is /root
- Add a command to this chapter’s case study program that allows the user to view the contents of a file in the current working directory. When the command is selected, the program should display a list of filenames and a prompt for the name of the file to be viewed. Be sure to include error recovery in the program. If the user enters a filename that does not exist they should be prompted to enter a filename that does exist.Commands for the following but only as an unprivileged user - Create a new directory in /tmp/ called "quiz"- Create /tmp/quiz/file1 containing "asdf"- Create /tmp/quiz/file2 containing "1234"- Create a new directory in /tmp/quiz/ called "sub1"- Create a copy of /tmp/quiz/file1 called "file3" in /tmp/quiz/- Create a copy of /tmp/quiz/file1 in /tmp/quiz/sub1/- Create a copy of /tmp/quiz/sub1/ and all of contents called "sub2" in /tmp/quiz/- Move /tmp/quiz/file2 to /tmp/quiz/sub2/- Move /tmp/quiz/sub1/ inside of /tmp/quiz/sub2/- Rename /tmp/quiz/sub2/ to /tmp/quiz/subdir/- Copy all of the files ending with .repo from /etc/yum.repos.d/ to /tmp/quiz/subdir/- Remove all files with "updates" anywhere in the name from /tmp/quiz/subdir/- Remove /tmp/quiz/file1- Securely delete /tmp/quiz/subdir/file2- Rename /tmp/quiz/file3 to /tmp/quiz/file1- Recursively remove /tmp/quiz/ and all of its contents, ignorning warnings121. Which files will be displayed by the following command: cat *file* a) all files in the directory b) all files with filename containing ‘file’ c) no files will be displayed d) a single file