BC calculation for floating (invalid arithmetic operator ) Post: 302976383

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Top Forums Shell Programming and Scripting BC calculation for floating (invalid arithmetic operator ) Post 302976383 by Don Cragun on Wednesday 29th of June 2016 01:56:31 AM

06-29-2016

Registered User

As Aia noted, the version of the Korn shell you're using makes a big difference here. With a 1993 or later version of ksh, your code might work. I'm not sure in this case that the OS matters much, but when asking questions like this, it is always a good policy to tell us what environment you're using.

The fact that the error messages that ksh printed did not come from the script you showed us makes us wonder what the other two lines before the if statement looked like and what the line that you removed before the elif looked like???

And, the fact that you're using sed to remove commas from the uptime output makes us wonder what locale you're using. The text in your output is English, but if you're removing commas, is the locale European or are the actions on the commas just there to confuse us???

Please show us:

the actual code that produced those error messages,
the output you get from running the command: /bin/ksh --version,
the output you get from running the command: locale,
and the output you get from running the command: uptime

(note that when displaying the output you get from running commands, the input that is given to commands, and code segments you should use CODE tags; not just when showing us code segments).

I would guess that you're using a 1988 version of ksh, but until I figure out what you're trying to do with the commas, I'm not sure how to address your problem.

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shcomp

SHCOMP(1)						       Korn shell utilities							 SHCOMP(1)

NAME

       shcomp - compile a shell script

SYNOPSIS

       shcomp [ options ] [infile [outfile]]

DESCRIPTION

       Unless  -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh can read and execute with
       the same effect as the original script.

       Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly.

       If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages	that  need  to	be  translated	to
       locale specific versions for internationalization.

       If  outfile  is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from
       standard input.

OPTIONS

       [D dictionary] Generate a list of strings that need to be placed in a message catalog for internationalization.	[n noexec] Displays  warn-
       ing messages for obsolete or non-conforming constructs.	[v verbose] Displays input from infile onto standard error as it reads it.

EXIT STATUS

       0
	 Successful completion.
       >0
	 An error occurred.

SEE ALSO

       ksh(1)

IMPLEMENTATION

     version
       shcomp (AT&T Research) 2003-03-02
     author
       David Korn <dgk@research.att.com>
     copyright
       Copyright (c) 1982-2010 AT&T Intellectual Property
     license
       http://www.opensource.org/licenses/cpl1.0.txt

								    2003-03-02								 SHCOMP(1)

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