Write a command that changes the file group of all files in the current working directory that start with a digit (0 through 9) to moderator.
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Write a command that changes the file group of all files in the current working directory that start with a digit (0 through 9) to moderator.
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- 1. Write a command to search only files in /usr directory, whose name is ending with dir.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.Write your own WASM file called print_name.wat in your home directory. It must print your name followed by one newline character when it is executed. To submit the file, run submit01 at the command line.It will tell you whether you have saved the file in the right place.
- The file practice has no permissions at all. What permission should be assigned to this file so you (the owner) could add text to the end of the file?Write a grep command that will match all words in a file that have exactly one 'a'.Write a command that revokes write permissions from group and other for all files in the current working directory.
- Given the variable names pathName contains a string describing a directory path, write a statement that will store the names of all files in a List structure named volume. DO NOT traverse the path/directory. You are only interested in the immediate path. You may assume that any neccesay statments already exist.Write the command taht will locate all files that have the suffix/extension of ".py". For each file that is located, the command should append the suffix/extension of ".backup" to the file. So, if a file had the name "one.py", its new name would be"one.py.backup".Two separate files in your account may have the same name. So, let's assume you're in your home directory. The following command will move the file florence to your home directory's Proposals folder.
- The file 'numbers' contains a list of numbers. Write a command to place the largest one of those numbers into the file 'largest' (there should be nothing else in that file). Do not use the 'head' command in your answer.The "journal" is an indexed binary file that stores logging data. What command can be used to display only messages stored in the "journal" that have a priority of "warning"?You may have duplicate files. Let home be the directory. The following command moves Florence to the home directory's Proposals subfolder.