Which pattern will match all filenames containing a "b"? [!b]* *b* *b b*
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Which pattern will match all filenames containing a "b"?
[!b]*
*b*
*b
b*
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- Answer the given question with a proper explanation and step-by-step solution. 1- Write code that does the following: opens an output file with the filename number_list.txt, uses a loop to write the numbers 1 through 100 to the file, then closes the file.The python function file_first_chars takes one parameter, fname, the name of a text file, and returns a string made up of the first character from each line in the file. You may assume there are no blank lines in the file. Hint: Use a for loop to iterate over the lines of the file and accumulate the string of first characters.Which pattern will match all filenames containing a "b"? [!b]* *b* *b b*
- *Code in Python Write a script named dif.py. This script should prompt the user for the names of two text files and compare the contents of the two files to see if they are the same. If they are, the script should simply output "Yes". If they are not, the script should output "No", followed by the first lines of each file that differ from each other. The input loop should read and compare lines from each file, including whitespace and punctuation. The loop should break as soon as a pair of different lines is found. Below are examples of the program input and output along with relevant files: one.txt: This is text. abc 123 sameAsOne.txt: This is text. abc 123 differentFromOne.txt This is text. xyz 123 Comparing files that are the same: Enter the first file name: one.txt Enter the second file name: sameAsOne.txt Yes Comparing files that are different: Enter the first file name: one.txt Enter the second file name: differentFromOne.txt No abc xyzThe function print_last_line in python takes one parameter, fname, the name of a text file. The function should open the file for reading, read the lines of the file until it reaches the end, print out the last line in the file, report the number of lines contained in the file, and close the file. Hint: Use a for loop to iterate over the lines and accumulate the count. For example: Test Result print_last_line("wordlist1.txt") maudlin The file has 5 lines.The following program does not currently have any comments. Copy the programto your m-file. Add comments to the code. Every single line of code should be explained witha comment. Also, the function of the script should be explained. load datavals.mat[r,c]=size(datavals);for row = 1:r runsum=0; for col=1:c if datavals(row,col) > 0 runsum = runsum+datavals(row,col); end endfprintf('The total sum of positive numbers is %f \n',runsum)end
- Q2)A- write m-file which asks user to enter n"- real numbers, then it tells the user (after each number) if this number odd or even? Matlab B)-write m-file to help user to enter three numbers and it will rewrites these numbers from Smallest one to largest one? Tell the user about the working of this m-file? Don't use sort? 031Get the mean/average in a .txt file in pythonStrictly use the Code SampleFilename: numbers.txt456622101588153190Code Sample: fileName = input("Enter the file name: ")f = open(fileName, 'r')Continue the code to get the mean/average from a .txt file.my code is # importing pandas for csv file operationsimport pandas as pd # filename to store the filename, change it to your filenamefileName = 'survey.csv' # Creating a dataframe by opening the given filedf = pd.read_csv(fileName) # converting the date string to datetimepd.to_datetime(df['Timestamp']) Question - Python code to drop the data values from your data set where the age is less than 1 or greater than 99.• Print the shape of your new data frame using the shape property.• Has the number of columns changed?• Has the number of rows changed?• Explain why each has or has not changed.
- my code is # importing pandas for csv file operationsimport pandas as pd # filename to store the filename, change it to your filenamefileName = 'survey.csv' # Creating a dataframe by opening the given filedf = pd.read_csv(fileName) # converting the date string to datetimepd.to_datetime(df['Timestamp']) Question - Python code to drop the data values from your data set where the age is less than 1 or greater than 99 BY USING DROP FUNCTION. DO NOT CHANGE ORIGINAL DATA FRAME Example of function required is df_data.drop(df_data[df_data.salary<0].index,inplace=True) • Print the shape of your new data frame using the shape property.• Has the number of columns changed?• Has the number of rows changed?• Explain why each has or has not changed.Time Write a Python script that extracts and prints a single record from an input file in which organized by line. Each line contains the name of a person (possibly containing multiple followed by the year of his birth. Abbas ibn Firnas ibn Wirda: 809 Muhammad ibn Musa al - Khwarizmi: 780 Abu Al - Walid Muhammad Ibn Ahmad Rushd: 1126 The program uses function extract DataRecord with the specification: @param infile the input text file object @return pants a list containing the name (string) in the first element and the year of bir the second element. If the end of file was reached, an empty list is returnedCould you help me write a C++ code to do the following: Create a program that asks the user for the name of a file and thenrearranges the contents of the file so that its lines are in alphabetical order.The program should modify the file, not print its contents to the screen.Use the STL algorithm sort.