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Full Discussion: Bash Decimal Addition using bc
Top Forums Shell Programming and Scripting Bash Decimal Addition using bc Post 302478324 by vb615 on Tuesday 7th of December 2010 04:16:40 PM
Old 12-07-2010
Bash Decimal Addition using bc
Hi guys/gals i have a quick question. I am trying to read from a file and add the values up but the problem is the values are not integers their floats so i tried to used bc but failed epicly lol. Any tips would be great. Thanks

this is the code i have so far :

Code:
while read num
do
    total=$(echo "scale=2; $num + $total" | bc)
done < <(cat file.txt)

echo "Total: " $total

Last edited by Scott; 12-07-2010 at 05:34 PM.. Reason: Please use code tags
 

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LEARN ABOUT SUSE

id3tag

ID3TAG(1)                                                          User Command                                                          ID3TAG(1)

NAME

       id3tag - Tags an mp3 file with id3v1 and/or id3v2 tags.

SYNOPSIS

       id3tag [ OPTION ]...  [ FILE ]...

DESCRIPTION

       Id3tag  will  render  both  types of tag by default.  Only the last tag type indicated in the option list will be used.  Non- rendered will
       remain unchanged in the original file.  Will also parse and convert Lyrics3 v2.0 frames, but will not render them.

OPTIONS

       -1, --v1tag
              Render only the id3v1 tag

       -2, --v2tag
              Render only the id3v2 tag

       -h, --help
              Display help and exit

       -v, --version
              Display version information and exit

       -a, --artist ARTIST
              Set the artist information

       -s, --song SONG
              Set the song title information

       -A, --album ALBUM
              Set the album title information

       -c, --comment COMMENT
              Set the comment information

       -C, --desc DESCRIPTION
              Set the comment description

       -g, --genre num
              Set the genre number

       -y, --year num
              Set the year

       -t, --track num
              Set the track number

       -T, --total num
              Set the total number of tracks on the album

SEE ALSO

       id3convert(1), id3info(1), id3v2(1)

AUTHOR

       id3lib was originally designed and implemented by Dirk Mahoney and is maintained by Scott  Thomas  Haug  <sth2@cs.wustl.edu>.  Manual  page
       written for Debian GNU/Linux by Robert Woodcock <rcw@debian.org>.

local                                                                May 2000                                                            ID3TAG(1)
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