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Full Discussion: float input
Top Forums Shell Programming and Scripting float input Post 302294600 by purva on Thursday 5th of March 2009 01:19:24 PM
Old 03-05-2009
float input

My problem is to input float value.
I have done it in this way
#!bin/bash
sum=0.0
read a
sum=`expr $a + $sum | bc`
echo sum
but when i entered float no. then it is giving expr...non numeric argument .
ok
thanx any ways
 

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sum(n)									sum								    sum(n)

NAME
sum - calculate a sum(1) compatible checksum SYNOPSIS
package require Tcl 8.2 package require sum ?1.0? ::crc::sum ?-format format? message ::crc::sum ?-format format? -filename file DESCRIPTION
This package provides a Tcl-only implementation of the sum(1) command which calculates a 16 bit checksum value from the input data. The BSD sum algorithm is used by default but the SysV algorithm is also available. COMMANDS
::crc::sum ?-format format? message ::crc::sum ?-format format? -filename file The command takes string data or a file name and returns a checksum value calculated using the sum(1) algorithm. The result is for- matted using the format(n) specifier provided or as an unsigned integer (%u) by default. OPTIONS
-filename name Return a checksum for the file contents instead of for parameter data. -format string Return the checksum using an alternative format template. EXAMPLES
% crc::sum "Hello, World!" 37287 % crc::sum -format 0x%X "Hello, World!" 0x91A7 % crc::sum -file sum.tcl 13392 SEE ALSO
sum(1), cksum(n), crc32(n) AUTHORS
Pat Thoyts KEYWORDS
sum, cksum, checksum, crc, crc32, cyclic redundancy check, data integrity, security crc 1.0 sum(n)
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