Re: Simple calculator
On Wed, Aug 05, 1998 at 07:51:39AM +0200, Dr. Michael Meskes wrote:
> Do bc and dc accept the numbers on the command line?
To an extent:
zylo@zylo:~$ echo '2.2 + 3.3' | bc -l
5.5
zylo@zylo:~$ bc -l <<EOF
> 2.2 + 3.3
> EOF
5.5
Using a wrapper script:
zylo@zylo:~$ cat bc.pl
#!/usr/bin/perl
if ( ! (open BC, "|bc -l") ) { print STDERR "Can't open bc.\n"; exit -1; }
print BC join(' ',@ARGV),"\n";
close BC;
zylo@zylo:~$ ./bc.pl 2.2 + 3.3
5.5
--
* Gavin Lewis zif@kalifornia.com (preferred) *
* zif@hax0r.org (alias to above, could vanish) *
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