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Shell Programming and Scripting

My script doesn't work in the terminal window!

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Top Forums Shell Programming and Scripting My script doesn't work in the terminal window!
# 22  
Old 02-22-2013
Where did you fall off the wagon?
# 23  
Old 02-22-2013
Quote:
Originally Posted by piynik
Thanks DGpickett but I have no idea what you talking about lol
Essentially, the difference between {1..9999999999}, and loops like for((X=1; X<=9999999999; X++)) is

{1..9999999999} generates a giant list of every single number between 1 and 9999999999. It has to calculate them all in advance, and keep them all in memory simultaneously.

The other loop doesn't. It just keeps adding 1 to the same number.

Your sed loops and the like compound the problem, by forcing your program to read the entire file every loop just to get a single line...
# 24  
Old 02-22-2013
Yes, reading even after the line is found -- double naughty: N*(N+1) not N*(N+1)/2 reads.
Last edited by DGPickett; 02-22-2013 at 12:17 PM..
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