[ale] bash question [array]

[Ken Alexander]

I'm not a guru, but I think this is what you want ...

declare -a anarray
declare -i x
filename=temp1
exec 3<$filename
x=1

while read line <&3; do
  anarray[$x]=$line
  echo ${anarray[$x]}
  firstfield[$x]=${line:0:4}
  echo ${firstfield[$x]}
  x+=1
done

exec 3>&- # close the file


On Fri, 2007-07-13 at 10:42 -0400, Dr. Brian J. Dowd wrote:

> Any bash gurus out there?
> trying to parse substrings from lines, read from a file, into
> variables of an array...
> 
> declare -a anarray
> filename=temp1
> exec 3<$filename
> let x=1
> 
> while read line <&3; do
>   anarray[x]=$line  
>   echo ${anarray[$x]} # this works and prints the whole line
>   firstfield[x]={$line:0:4}; echo $firstfield[x] # this just prints
> the string  " [x] "
>   let "x += 1"
> done
> 
> exec 3>&- # close the file 
> 
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