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