Command-Line Utilities
Three small command-line utilities in C: a wind-chill calculator, a word printer, and a self-resizing histogram builder for streamed numbers.
╌╌╌╌
Three small command-line utilities written in C, each reading input and writing to standard output in the Unix filter style.
chill computes the wind chill from an air temperature
(°F) and a wind speed (mph), using the US National Weather Service
formula:
computeChill returns the value and printTable formats the output:
with no arguments the program sweeps a table over temperatures from
to °F and winds from to mph; given a temperature it
varies wind alone, and given both it prints the single value.
words prints the words in a file one per line, reading from a named file
or from standard input, scanning character by character with isalpha and
emitting each run of letters as a line. histo reads a stream of integers
from standard input into sixteen fixed bins; when a value overflows the
current range the bin width doubles and the existing counts are merged, so
the histogram rescales itself to fit the data.
References
╌╌ END ╌╌