Quick file formatting help

Question

I have a text file that is formatted as follows:
-0.0016175000
-0.0017733000
-0.0018856000
-0.0019120000
-0.0018445000
-0.0016527000
-0.0013274000
-0.0009151100
-0.0004094200
-0.0001299200
0.0000949790
0.0000043996
-0.0002285200
-0.0002984000
-0.0004567800
-0.0007942500
.....etc to 4096 lines
I would like to format it to 8f9.6 (8 columns, 9 characters per column, 6 decimal places) so that it looks like this : (ignore the numbers)
0.000798 0.000767 0.000724 0.000734 0.000782 0.000795 0.000826 0.000902
0.000979 0.000967 0.000965 0.001138 0.001277 0.001257 0.001289 0.001465
0.001700 0.001913 0.002056 0.002195 0.001990 0.001317 0.000547-0.000331
-0.001186-0.001798-0.002032-0.002070-0.002350-0.002688-0.003055-0.003558
-0.003862-0.003885-0.003795-0.004288-0.005034-0.004921-0.004742-0.004633
-0.004324-0.003811-0.003159-0.003647-0.004038-0.003878-0.004468-0.004487
-0.004155-0.003389-0.002787-0.004875-0.006885-0.008231-0.010034-0.010298
-0.010232-0.009111-0.007179-0.005626-0.002845-0.001475-0.000203 0.003708
0.006822 0.009041 0.009653 0.008051 0.006684 0.003679 0.001132 0.000948
0.000256 0.000046 0.000609 0.002814 0.005005 0.004153 0.004023 0.005317
...etc.
Thank you

Answer 1

Not a beauty, but should work (reads from "file", outputs to standard output).
#! /usr/bin/ruby -w
arr = []
x = 0
File.open("file", "r") do |file|
while line = file.gets
arr.insert(-1,line)
end
end
arr.each do |element|
print sprintf("%9.6f",element)
x = x + 1
puts if x.modulo(8) == 0
end
Last edited by lucke (2009-05-13 23:38:11)