On Thu, 18 Feb 2010, jida...@jidanni.org wrote: > $ expr 3.1 + 3 > expr: non-numeric argument <---say "non integer argument" > $ expr 3.1 + 3b > expr: non-numeric argument
The expr command's arithmetic only works with integers. 3.1 is not an integer, nor is 3b. To do calculations with decimal fractions, I recommend awk. -- Chris F.A. Johnson <http://cfajohnson.com> =================================================================== Author: Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress) Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
