bash grep results into array

Question

In bash I\'m trying to collect my grep results in array, each cell holding each line. I\'m downloaing urls with this line

wget -O index -E $CurrentURL

Answer 1

 readarray GREPPED < <(grep "some expression" index)
 for item in "${GREPPED[@]}"
 do
     # echo
     echo "${item}"   
 done

Oh, and combine those -v greps like so:

 egrep -v '\.(jpg|gif|xml|zip|asp|php|pdf|rar|cgi|html?)'

Answer 2

Probably most elegant among several poor alternatives would be to use a temp file.

wget $blah | grep 'whatever' > $TMPFILE
declare -a arr
declare -i i=0
while read; do
    arr[$i]="$REPLY"
    ((i = i + 1))
done < $TMPFILE

I don't have time to explain why, but do not pipe directly into read.

No Unix shell is an appropriate tool for this task. Perl, Groovy, Java, Python... lots of languages could handle this elegantly, but none of the Unix shells.