Average
Command-line calculator of basic statistics.
...It calculates average (arithmetic mean), standard deviation, median, total sum, minimum and maximum values present, and shows the number of processed numbers.
Entry can by a text file (any column can be specified, default is the first) or directly in the terminal if Average is run without specifying a file -- in which case, input can be terminated by pressing Ctrl-D.
It is possible to choose the output of a single statistic (just the value, no labels), instead of the fully detailed output (default).