#!/bin/bash
cat list.txt | while IFS='' read -r a;
#Remove all illegal characters
do
   a=${a//  /_}
   a=${a// /_}
   a=${a//'/}
   a=${a//-/_}
   a=${a,,}
   filepath="/applications/"
   b=$filepath$a".csv"
   echo $b
done

/applications/ahold_region
/applications/alb_sfy_region
/applications/awg_census_region
/applications/bjs_total_ta
/applications/delhaize_region
/applications/dollar_value_area

.csvlications/ahold_region
.csvlications/alb_sfy_region
.csvlications/awg_census_region
.csvlications/bjs_total_ta
.csvlications/delhaize_region
.csvlications/dollar_value_area