Added work from my other class repositories before deletion

OSU Coursework/CS 344 - Operating Systems I/Assignment 1 - stats/reference/implementation notes.txt

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+stats {-rows|-cols} [input_file]
+
+DONE: Numbers are separated by tabs, lines by newlines
+
+DONE: Check for the correct number of arguments, failure to standard error
+
+DONE: Check whether file is readable, or exists, stderr if not
+
+DONE: -rows and -cols should work for anything that starts with its character eg. -rad would do rows
+
+Stats output to stdout
+
+Exit value for errors should be 1
+
+You can assume each row will be less than 1000 bytes long, unix limits this, but unlimited numbers of rows
+
+DONE: If using temp files, make sure they include process id's in name to allow for simultaneous runs. Remove files when done.
+
+DONE: Use the trap command to catch interrupt, hangup, and terminate signals to remove temp files if terminates unexpectedly
+
+Values and results must be whole numbers, round like normal, 7.5 to 8, 7.4 to 7
+
+DONE: Calculations must be done with expr or commandline tools. No other languages
+
+DONE: For median, sort values and take the middle value. If even, take the larger of the middle two values.
+
+DONE: Must be in a single file.
+
+DONE: You can return an error if there is no input file
+
+HINTS
+

OSU Coursework/CS 344 - Operating Systems I/Assignment 1 - stats/reference/sample results.txt

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+% cat test_file
+ 1       1       1       1       1
+ 9       3       4       5       5
+ 6       7       8       9       7
+ 3       6       8       9       1
+ 3       4       2       1       4
+ 6       4       4       7       7
+% stats -rows test_file
+ Average Median
+ 1       1
+ 5       5
+ 7       7
+ 5       6
+ 3       3
+ 6       6
+% cat test_file | stats –c
+ Averages:
+ 5       4       5       5       4
+ Medians:
+ 6       4       4       7       5
+% echo $?
+ 0
+% stats
+ Usage: stats {-rows|-cols} [file]
+% stats -r test_file nya-nya-nya
+ Usage: stats {-rows|-cols} [file]
+% stats -both test_file
+ Usage: stats {-rows|-cols} [file]
+% chmod -r test_file
+% stats -columns test_file
+ stats: cannot read test_file
+% stats -columns no_such_file
+ stats: cannot read no_such_file
+% echo $?
+ 1