6. echo *[!0-9] 7. echo m[a-df-z]*
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2.
With HW1Directory as the working directory, give the output of each of the following commands and a brief (~ one sentence) description of what the effect of the command is.
6. echo *[!0-9]
7. echo m[a-df-z]*
The file is a directory that contains the following filenames. It is *.txt file
feb06
jan05
jan5
jan06
jan07
jan08
jan12
jan19
jan26
mar08
memo
memo1
memo2
memo2.sv
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- Create File comparators that arrange files in ascending/descending order of file size, ascending/descending order of file name, and ascending/descending order of last modification date. Employ these comparators in LS, a programme that accepts a command-line input and lists the files in the current directory in a certain order, such as "-t" to sort by timestamp.To break ties, support several flags. Be certain you use a reliable sort.Write a program that performs the following operations according to the input value with Linux Bash Script. [1] Create a file for a given filename and list the generated file in a long format [2] Delete a file for a given filename [3] Copy a file content to another file [4] Listsubdirectories of a current directory recursively [5] Generate the command that finds how many times the "cat" command has been used in your command history so far. [6] Generate the command that writes the file names starting with W in the active directory to the "Files.txt" file. should be solved using Linux Bash Scripting solution code and one/two screenshots for running of program.Assume the following files are in the working directory: $ ls output.txt notes1 notes2 notestxt notes3 notes4 output.1 output.2 output.3 output-1b output-2b Give commands for each of the following, using wildcards to express filenames with as few characters as possible. a. List all files that begin with output. b. List all files that end in txt. c. List the output. files only. d. List the output.1, output.3, notes1, and notes3 files.
- The MINIX filesystem supports filenames of 60 characters (and allocates all 60 characters in the directory file, whether they are used or not). In light of this fact, explain why the ‘rename’ system call was not simply implemented by changing the filename in place in the directory file.Write a program to read two file names from the command line. If the number of arguments in the command line are more than or less than two, then the program should terminate with an appropriate error message. Otherwise, it should open the first file and copy its contents into the second file, in effect overwriting its contents, if any.How do change the code so that one or more command-line arguments are accepted as well as outputting a message when no command-line arguments are provided by the user? The expected behavior is that the program should print the files, in order, to standard output, effectively concatenating the contents of the supplied files. Code: public class MyCat { /** * Entry point for the application. Exactly zero or one command-line arguments are expected. * If a filename is given as an argument, then the program should print the contents of that * file to standard output. If a single dash (i.e., "-") is given as an argument, then * the program should print the contents of standard input. * * @param args the command-line arguments */ public static void main(String[] args) { try { String filename = args[0]; String newArg = args[1]; Scanner input = null; if (filename.equals("-")) {…
- ) Write Linux commands for the following:i) Copy a file test1.py from Prac01 directory to Subdir1 directory in the followingdirectory structure.FOPPrac01Prac02Prac03-Subdir1Subdir2(Where FOP is at the top level then Prac01, 02 and 03 are at next level and Subdir1and 2 are next to next level.)ii) To delete a directory DIR which has a file test2.py in it.Given an initialised variable fileName, write a series of instructions that produces a file with the name indicated by fileName and a single line stating "This Is File:" followed by the file's name. Verify that the data written to the file has been purged from its buffer and that all system resources utilised by these statements have been freed. (Don't worry about exceptions; presume they're handled elsewhere.)Write a set of instructions that, given an initialised variable fileName, creates a file with the name given by fileName and a single line that says "This Is File:" followed by the file's name. Check that the data saved to the file has been removed from the buffer and that all system resources used by these lines have been released. (Don't worry about cases; just assume they're taken care of somewhere else.)
- In Fedora 37: 1. Create a directory named Module8 and navigate to that directory. 2. Create a file named pay.dat in Module8 with the following contents (in bold) for Employee ID, Employee Name, and Pay Rate (per hour); remember to press enter after each line: 0001:John Smith:15.40 0002:Jane Smith:15.41 0003:George Jungle:12.10 0004:Ursula Jungle:16.11 3. Use the cut command and cut the 2nd and 3rd field. 4. Reopen pay.dat and add the entry for Jane Smith at the end. So, now there will be 5 lines and the result should look like this: 0001:John Smith:15.40 0002:Jane Smith:15.41 0003:George Jungle:12.10 0004:Ursula Jungle:16.11 0002:Jane Smith:15.41 5. Run the uniq command to display duplicates that are in the file. 6. Sort the data in pay.dat by the rate of pay. 7. Sort the data in reverse order by the employee's ID. 8. Take screen captures and put them in a single MS Word document.Exercise 1: Please create a script that print “Hello, your name.” • Exercise 2: Please create a directory call user_bin, and add it to PATH. Then mv script of Exercise 1 to user_bin. Then run it from your root directory.• Exercise 3: Add a new command call ‘l’ which will perform exact same as ‘ls -a’. • Exercise 4: Create a function call sortFile, which will sort all filenames of current directory. Exercise 6: Could you add one variable in the example, name the variable as greeting, which displays “Hello, my name is xxx xxx” in the body using variable greetingSuppose I wrote a simple program to take in a filename from a user and then, using that given filename my program would execute a command to copy that file to a particular location (such as my own submission directory). I then made that program executable by someone else. For example, if they gave me a filename "dog.txt", my program would create a string called "cp dog.txt subfolder" and then execute it using the system command. What would I need to do to ensure that nothing malicious was allowed to happen?
