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Full Discussion: Shell arithmetic : operations on decimal points
Top Forums Shell Programming and Scripting Shell arithmetic : operations on decimal points Post 302896764 by rishifrnds on Wednesday 9th of April 2014 06:34:23 AM
Old 04-09-2014
#!/bin/sh

Code:
a=$1
b=$(echo "$a * 0.43"|bc)
echo $b

---------- Post updated at 04:04 PM ---------- Previous update was at 04:00 PM ----------

Code:
#!/bin/sh

a=$1
b=`printf "%.2f"  $1*0.43`
##b=$(echo "$a * 0.43"|bc)
echo $b

Result:
Code:
printf: 10*0.43: value not completely converted
10.00

expected ans 4.3
Last edited by Scott; 04-09-2014 at 07:35 AM.. Reason: Use code tags, please...
 

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LEARN ABOUT DEBIAN

cpanplus::shell

CPANPLUS::Shell(3perl)					 Perl Programmers Reference Guide				    CPANPLUS::Shell(3perl)

NAME

       CPANPLUS::Shell - base class for CPANPLUS shells

SYNOPSIS

	   use CPANPLUS::Shell; 	    # load the shell indicated by your
					    # config -- defaults to
					    # CPANPLUS::Shell::Default

	   use CPANPLUS::Shell qw[Classic]  # load CPANPLUS::Shell::Classic;

	   my $ui      = CPANPLUS::Shell->new();
	   my $name    = $ui->which;	    # Find out what shell you loaded

	   $ui->shell;			    # run the ui shell

DESCRIPTION

       This module is the generic loading (and base class) for all "CPANPLUS" shells. Through this module you can load any installed "CPANPLUS"
       shell.

       Just about all the functionality is provided by the shell that you have loaded, and not by this class (which merely functions as a generic
       loading class), so please consult the documentation of your shell of choice.

BUG REPORTS

       Please report bugs or other issues to <bug-cpanplus@rt.cpan.org<gt>.

AUTHOR

       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

       The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved.

       This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.

SEE ALSO

       CPANPLUS::Shell::Default, CPANPLUS::Shell::Classic, cpanp

perl v5.14.2							    2014-09-29						    CPANPLUS::Shell(3perl)
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