remove white spaces in a bunch of files downloaded from moodle

cleanup-moodle.sh

# when downloading from moodle, filenames (incl. zip files) have annoying white spaces in them
#
# ds 201701

#filetype, e.g.
ending=.zip

# loop through
for i in *${ending}; do
    # make a new filename without blanks
    # this will work even when there are NO BLANKS!
    n=`echo "${i}" | sed 's/[[:blank:]]//g'`;
    # and if appropriate - move them
    #NB, then first set of quotation marks is needed, as the filenames still have spaces!
    mv "${i}"  ${n};

    if [[ ${ending} == ".zip" ]]; then
    
      # cut at first underscore - this is reasonable for us as the submissions are
      # FirstnameLastname_someAssignment_blablabla.zip
      fname=`echo ${i} | cut -d _ -f 1`

      # could cut after first space
      # fname=`echo ${i} | head -n1 | awk '{print $1;}'`

      # could convert into shasum - as filename - but loses name info!
      # fname=`shasum ${n} | awk '{ print $1 }'`

      cmd="unzip ${n} -d ${fname}"
      ${cmd}
    fi
done