isostick ISO Selector Script

iso-select.sh

#!/usr/bin/env sh

isofile='./config/iso_filename.txt'
isofile_pretty="$(basename "${isofile}")"
iso="${1}"

# if the user supplied an argument, write it to the file, otherwise offer them a
# choice of all present ISO files
if [ -n "${iso}" ]; then
  echo "${iso}" > "${isofile}"
  echo "'${iso}' written to ${isofile_pretty}"
else
  # list all ISO files recursively, keeping their paths and ignoring hidden
  isos=($(find . -not -path '*/\.*' -name '*.iso*' | sed 's|^\./||' | sort))

  PS3="Select an ISO to write to ${isofile_pretty}: "
  COLUMNS=1 # hack to force single-column select output
  select iso in "${isos[@]}"; do
    echo "${iso}" > "${isofile}"
    echo "'${iso}' written to ${isofile_pretty}"
    exit 0
  done
fi