Operator differences for Shell numeric and string comparisons

Numerical comparison:

N1-eq n2 Check if N1 equals N2 n1-le n2 check N1 is less than or equal to N2

N1-ge n2 Check if N1 is greater than or equal to N2 n1-lt n2 check N1 is less than N2

N1-GT n2 Check if N1 is greater than N2 N1-ne N2 check N1 is not equal to N2

string comparison:

STR1 = str2 Check if str1 and str2 are the same str1 > str2 check if STR1 is greater than str2

Str1! = str2 Check if str1 and str2 are different-n str1 check if the length of the str1 is greater than 0

STR1 < str2 check if STR1 is less than str2-z str1 check if the length of the str1 is 0

This article is from the "Cold River Exclusive Fishing" blog, please be sure to keep this source http://iter2012.blog.51cto.com/6873825/1613694

Operator differences for Shell numeric and string comparisons