linux - loop multiple file with only 1st file being read -

so have works going mulitple directories within these directories takes multiple fields files , store in .txt files. there 2 loop, first 1 loops through folder second 1 loops through files. problem encounter in second loops read first file in folder , moves on next folder , ignore other files in folder.

archive=/imdata/archive inventory_archive=/imdata/a/shares/b/inventory/c  ls $archive | while read p;    echo "project: $p"    mkdir -v $inventory_archive/$p    dir=$inventory_archive/$p    ls -1 $archive/$p/d001 | while read s;        echo "searching session: $s ..."        find $archive/$p/d001/$s -type f -iname "*.txt" | while read f;            echo "file: $f"             study=`/home/me/program/bin/script $f | grep -m1 "field1" | cut -d "[" -f2 | cut -d "]" -f1`            echo "sid: $study"            if [ ! -d "$dir/$study" ];                 mkdir -v $dir/$study            fi            studydir=$dir/$study             series=`/home/me/program/bin/script $f | grep -m1 "field2" | cut -d "[" -f2 | cut -d "]" -f1`            echo "sid_2: $series"            if [ ! -a "$studydir/$series.txt" ];                 touch $studydir/$series.txt            fi             sop=`/home/me/program/bin/script $f | grep -m1 "field3" | cut -d "[" -f2 | cut -d "]" -f1`            echo "sid_3: $sop"            grep -qsf $sop $studydir/$series.txt || echo $sop >> $studydir/$series.txt             exit 1;        done;    done; done;