use Linux!! to write program that count words, lines, characters for multiple files
Assignment 1
Word Count
General Requirements
• Write a program that counts the number of characters, words, and
lines in a file or group of files
• Subset of the standard Linux “wc” utility
• If no program parameters are specified then process standard input
• If program parameters are specified then they are the names of the
files that are to be processed.
• If more than 1 file is processed then provide a total in addition to the
individual file statistics
Threshold Requirements
• Character, Word, and Line count must match that given by wc for files
that only contain printable characters (text files)
• Works on standard input if no files specified on the command line
• Works on a list of files specified on the command line
• Produce a summary total if more than one file is specified
• Include results that show that the results match wc
• Include results for:
• standard input
• 1 file on command line
• multiple files on the command line
Objective Requirements
• No tabs in the source file
• Proper indentation
• Reasonable names for variables
• Proper submission format
• Produces the same character and line count as wc on binary files
• The word count does not have to match
• The exact definition of a word as used by wc is obscure
How is this Different From “wc”?
• No options on the command line. All parameters are assumed to be
filenames.
• Need not match the results of wc when processing files that contain
non-printing characters.
• Otherwise, it should produce the same results
What is a “word”?
• Sequence of characters delimited by whitespace
• “man isspace” for definition of whitespace
abc123 1 word
a + b – c 5 words
Example Test
Now is the time
This is the place
2 lines
8 words
34 characters
State Machine for Recognizing Words
Start
Finish
In A
Word
Not In A
Word
is Space
++words
++words
Hints
• The following functions from the standard library may be useful:
fopen
fgetc
isspace
• The following variable is available from the standard library
FILE * stdin;
• Use man to get more information on these functions/variable
Submission
• Printed solution due by the end of class on February 5
• Solution is to include:
• Source Code
• Test Data
• Screen shot of your results
• standard input
• 1 file on command line
• multiple files on the command line
• Screen shot of the same tests run with wc
• One of the tests is the source code for your program. Create at least
one more.
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