write a batch file which can print a text file on command prompt
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write a batch file which can print a text file on command prompt.
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- Given a valid file object, f, which of the following calls will return the entire contents of the file in a scalar x? x = f.readline() x = f.readlines() x = f.read() X = read(f)If a file already exists what happens to it if you try to open it as an output file (using the 'w' mode)?The 'a' mode appends new data to the end of an existing file. But if the file is nonexistent, it does not create a new one to append the data.True or False
- 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 a batch file named list that lists all the items in your desktop inside a text file named items.txt.Write a script which copies the contents of one text file to another text file. This script should prompt the user for the names of two text files. The contents of the first file should be input and written to the second file.
- $readmemb is used to initialize memory from a text file in hexadecimal values. True False It is a keyword used in the HDL code to import the hexadecimal contents of a text file into a memory variable. "When iCE is disabled in the memory module, the output in the tWbus is zero." True False When iCE is enabled in the memory module, the output in the tWbus is the memory address." True False eg [6:0] Memory [0:16] means the memory contains ___ bits per address 17 7 6 16 When iCE is disabled in the memory module, the output in the tWbus is high impedance" True False NEED ANSWERS QUICK NO EXPLANATION NEEDEDInstructions 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. An example of the program input and output is shown below: /root/sandbox 1 List the current directory 2 Move up 3 Move down 4 Number of files in the directory 5 Size of the directory in bytes 6 Search for a file name 7 View the contents of a file 8 Quit the program Enter a number: 7 Files in /root/sandbox: filesys.py example.txt Enter a file name from these names: example.txt THIS IS CONTENT OF AN EXAMPLE FILE. /root/sandbox 1 List the current directory 2 Move up 3 Move down 4 Number of files in the directory 5 Size of the directory in bytes 6…Write complete bash script that provides a menu to either double-space an input file or triple space an input file. Use the read command to obtainthe users choice and then perform the requested operation.For double spacing, the script will ask for an input file and then read eachline of the input file. For each line read, it then writes the line back toanother file, but with an extra blank line following. This has the effect ofdouble spacing the file. Include all necessary code to check if the readcommand gets the necessary filename, and whether the specified file exists. If so, continue with the double spacing, if not state that the filenamewas blank or does not exist and end the script.For triple spacing, the script will ask for an input file and then read each lineof the input file. For each line read, it then writes the line back to anotherfile, but with two extra blank lines following. This has the effect of triplespacing the file. Include all necessary code to check if the read…
- Write a script named copyFile.py. This script should prompt the user for the names of two text files. The contents of the first file should be input and written to the second file. An example of the program input is shown below: Enter the input file name: copyFrom.txt Enter the output file name: copyTo.txt Output: After running the program, a file named copyTo.txt will be outputted that contains the text from the copyFrom.txt 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 append the contents of the second file to the first file.You are given a String variable named file. It contains the name of a one-line file. Write a sequence of statements that make an exact copy of the file and give it the same name but with the string ".cpy" attached to the filename. Make sure that the data written to the file has been flushed from its buffer and that any system resources used during the course of running these statements have been released.(Do not concern yourself with any possible exceptions here-- assume they are handled elsewhere.)
