how to code a "less than" with strings

Guess · 12-28-2007, 07:30 PM

I have variables of the form

1.0.1a
1.0.2a
1.0.2b

how do I code a greater than or less than for this?

basic I need a

if var1 < "or equal to" var2, then
do stuff
fi

matthewg42 · 12-28-2007, 08:04 PM

Do you have a particular language in mind? In Perl the lt operator will do what you want.

bigrigdriver · 12-28-2007, 10:03 PM

In bash,

Code:

 
 -lt (<)  less than
 -gt (>)  greater than
 -le (<=)  less than or equal to
 -ge (>=)  greater than or equal to
 -eq (==) equals
 -ne (!=)  not equal