1 #!/bin/sh

     2 ###set -e

     3 

     4 trap "exit" INT

     5 

     6 files=${1:-assignment20177-*}

     7 

     8 for sd in $files; do

     9   cd $sd

    10   #echo $sd

    11   tail -1 output

    12   cd ..

    13 done

    14 

    15