Week11 Low Level IO

You are given the following text file: 'BlindingLightsLyrics.txt' and asked to count how many times the word 'lights' appears. How would you open the file?

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What data type is the file handle (fh) of a file?

• char

• double

• logical

• cell

What is the proper way to individually close files?

• close(fh)

• fclose('filename')

• fclose(all)

• fclose(fh)

Given a filename ending in '.txt' how would you create an updated filename that is the original filename with '_updated.txt' at the end?

(example in image)

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Given a filename ending in ANY extension how would you create an updated filename that is the original filename with '_updated' added before the extension?

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To loop through every line in a file, what would I need to make the terminating condition of the while loop?

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This code is supposed to go through every word on every line of the file. Which two EMPTY lines would you need to use 'strtok' on to make this code work? (answer using numbers separated by only commas!)

(a)  

For this code to loop through every word on every line, what should the input of the second strtok be?

• word

• line

• count

• rest

What do you get when you use fgetl or fgets when there is nothing left to read in the file?

• -1 (double)

• 1 (double)

• 1 (logical)

• -1 (char)