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Full Discussion: shell script question
Top Forums Shell Programming and Scripting shell script question Post 302134098 by blowtorch on Tuesday 28th of August 2007 09:53:13 PM
Old 08-28-2007
How about this?
Code:
#!/usr/bin/ksh
final=""
while read line; do
        case $line in
                [0-9]*.*[0-9]*-) final=$final-${line%-*};;
                *) final=$final+$line ;;
        esac
done < /path_to_file_with_numbers
finalsum=$(echo $final | bc)
echo $finalsum

I am not doing much error checking or validation here. The script expects valid numbers.
 

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TGET(1) 						      General Commands Manual							   TGET(1)

NAME
tget - get termcap values SYNOPSIS
tget [-flag id] [-num id] [-str id] [-goto col line] [[-echo] string] DESCRIPTION
Tget allows shell scripts access to the termcap(3) functions. Flags, numbers and strings can be queried from the termcap database under the entry denoted by the environment variable $TERM. OPTIONS
-flag id Set the exit status to zero if the flag id is set. All other options except -echo set the exit status to id being available or not. The last option sets the final exit code. -num id Print the value of the numeric variable id. -str id Print the value of the string variable id. -goto col line Generates instructions to go to the given column and line if the cm capability exists. -echo string Prints string. Any other argument that does not start with a dash is also printed. EXAMPLE
Try this: tget -str so 'Reverse Video' -str se ENVIRONMENT
TERM Terminal type. TERMCAP Path to the termcap database, by default /etc/termcap:/usr/etc/termcap. SEE ALSO
termcap(3). DIAGNOSTICS
Tget will fail immediately with a descriptive message if the termcap entry can't be found. AUTHOR
Kees J. Bot (kjb@cs.vu.nl) TGET(1)
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