Calling Entrez Direct (perl) from a shell script

Question

[5heikki]

I have this line in a while read line loop:

lineage=$(esearch -query "$line" -db taxonomy | efetch -format xml | xtract -element Lineage)

The problem is that it returns lineage only for the first line and then kills the parent process. It's really killing me because like 1-2 months back I figured out how to circumvent this problem, but now I seem unable to find a solution. Perhaps some Biostar might help me with this? Nothing wrong with the input file or any other part of the script..

[5heikki]

Ok so instead of while read line, this one works:

IFS=$'\n'
for next in `cat list`
do

done

I still don't understand why this happens though..