Computung Percentage

preetikate · #1 (**permalink**) 02-09-2004

I wish to find % used using shell variables
and am using the following

USED=`expr $1\* 100 / $2`;

But this does not take decimal portion of $1 .
How to resolve?

cbkihong · #2 (**permalink**) 02-09-2004

I believe sh doesn't support floating point arithmetic. You may need to resort to external languages, say Perl or Tcl for this purpose.

oombera · #3 (**permalink**) 02-09-2004

Actually, the OP didn't say whether they were using sh or not.

If you have the "bc" command installed, you can do something like: USED=`echo "$1 * 100 / $2" | bc`

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