Bash While loops

Question

I have a loop set up like the following

#!/bin/bash
cat $1|while read line;do
    wget --limit-rate=50k http://url/$line.json -O got-$line;
    if [ "$?" -ne "0" ]; then
        rm got-$line;
    fi
    sleep 4;
done

But when i call it

./script inputfile.txt

I get the following error

rm: cannot remove `got-inputfile.txt': No such file or directory
--2012-12-30 12:18:06--  (start of wget output and everything works normal)

Like the loop is running before there is any input

Any suggestions ?

Answer 1

I suspect url actually contains a & which causes the wget command to be run in background. You'd need to quote that url.