add
NAME
add - add a column of numbers read from standard input
SYNTAX
add [OPTION]... [FILE]...
DESCRIPTION
Summarise a column of numbers read from FILE(s) to standard output.
With no FILE, read standard input.
Options select fields to be included in the summary:
- -c
-
count
- -s
-
sum
- -m
-
mean
- -d
-
standard deviation
Options may be combined. Summary fields are printed in the order the options
were given, separated by spaces. If no options are given, -s is assumed.
The first recognisable number on each line is used.
The sum is given to the maximum decimal places of the input, the mean and
standard deviation to one more place.
Times of the form HH:MM:SS are recognised and converted to seconds for
calculations.
EXAMPLES
Add the numbers from 1 to 100:
-
ap 1 100 | add
Find count, sum, and mean of file sizes:
-
stat -t *.c | cut -d' ' -f2 | add -csm
AUTHOR
Written by Adam Curtin, Yellowduck Ltd.
REPORTING BUGS
Contact Us
COPYRIGHT
Copyright © 2003 Yellowduck Ltd
This is free software. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.