Using bc to assign value Post: 302309759

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Top Forums Shell Programming and Scripting Using bc to assign value Post 302309759 by navjinder on Wednesday 22nd of April 2009 07:34:31 PM

04-22-2009

Registered User

Using bc to assign value

Friends here is code which is used to add floating point using bc, but I m not getting any output instead some errors.

Code:

1 #!/bin/bash

 
  4 if [ -c /proc/$$/fd/0 ]
  5 then
  6    echo "Our input is from a Device"
  7         while read myline
  8         do
  9
 10         total= `echo $total + $myline |bc`
 11         #((total=$total+ $myline))
 12         done
 13
 14 elif [ -p /proc/$$/fd/0 ]
 15 then
 16
 17    echo "Our input is from a pipe"
 18         while read myline2
 19         do
 20         total= `echo $total + $myline |bc`
 21         #((total= $total+ $myline2))
 22         done
 23 elif [ -f /proc/$$/fd/0 ]
 24 then
 25
 26    echo "Our input is from a file"
 27         while read myline3
 28         do
 29         add=+
 30         $(($total $add $myline))| bc
 31         #echo $total $myline
 32         #total= echo `$total $add $myline |bc`
 33         #((total= $total+ $myline))
 34         done
 35
 36
37
38   echo "Error"
 39         break;
 40 fi
 41
 42 echo total is $total

Last edited by Franklin52; 04-25-2009 at 10:00 AM.. Reason: adding code tags

navjinder

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LEARN ABOUT DEBIAN

mtbl_info

MTBL_INFO(1)															      MTBL_INFO(1)

NAME

       mtbl_info - display information about an MTBL file

SYNOPSIS

       mtbl_info FILE [FILE]...

DESCRIPTION

       mtbl_info(1) displays the following information about the MTBL files specified on the command line.

       file name -- the name of the MTBL file.

       file size -- the total size of the MTBL file, in bytes.

       index bytes -- the total number of bytes and proportion of the total file size consumed by the index.

       data block bytes -- the total number of bytes and proportion of the total file size consumed by data blocks.

       data block size -- the maximum size of an uncompressed data block.

       data block count -- the total number of data blocks.

       entry count -- the total number of key-value entries.

       key bytes -- the total number of bytes that all keys in the file would occupy if stored end-to-end in a byte array with no delimiters.

       value bytes -- the total number of bytes that all values in the file would occupy if stored end-to-end in a byte array with no delimiters.

       compression algorithm -- the algorithm used to compress data blocks. Possible values are "none", "snappy" and "zlib".

       compactness -- a rough metric comparing the total number of bytes in the key-value entries with the total size of the MTBL file. It is
       calculated as (file size) / (key bytes + value bytes), and thus takes into account the gains of data block compression and prefix key
       compression against the overhead of the index, trailer, and data block offset arrays.

								    05/29/2012							      MTBL_INFO(1)

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