Verfying file names conforming to naming convention

## Written by Julian Rutledge, February 2012.
## Licensed for use under the GPL v3


#!/bin/sh



#establish working directory and make subdirectory to contain batchfiles

echo "enter path to directory to be scanned"

read DIR



PWD=`pwd`

mkdir $PWD/batchfiles.d



#make file list

ls $DIR | cat -n > $PWD/batchfiles.d/filelist-total.txt



#create error log

touch $PWD/batchfiles.d/fnc.errorlist



#create first list of unscanned files and populate from list of files to be scanned

cat $PWD/batchfiles.d/filelist-total.txt > $PWD/batchfiles.d/filelist-work.txt



#set total number of files to be scanned as the first field of last line from the total list

TOTALNUM=`cat $PWD/batchfiles.d/filelist-total.txt | tail -n1 | cut -f1`



#initialize cut number variable as total number of files to be scanned

CUTNUM=$TOTALNUM



while [ $CUTNUM -gt 0 ]; do

    #grab first line from working list

    FIRSTLINE=`cat $PWD/batchfiles.d/filelist-work.txt | head -n1`

    #set file number number as the first field of first line of the working list

    FILENUM=`cat $PWD/batchfiles.d/filelist-work.txt | head -n1 | cut -f1`

    #set sort field as the fourth field of the first line (delimited by periods) of the working list

    SORTFIELD=`cat $PWD/batchfiles.d/filelist-work.txt | head -n1 | cut -d. -f4`

    # search for period as delimiter in file

    DLIM=`echo $FIRSTLINE | grep "\."`

    #if there is no delimter, wipe the sortfield variable

    if [ "$DLIM" = "" ]; then

        SORTFIELD=""

    fi

    #if the sortfield variable is empty, print the filename to the error log, otherwise continue scanning

    if [ "$SORTFIELD" = "" ]; then

        CUTNUM=$(($TOTALNUM - $FILENUM))

        tail -n$CUTNUM $PWD/batchfiles.d/filelist-total.txt > $PWD/batchfiles.d/filelist-work.txt

        echo $FIRSTLINE >> $PWD/batchfiles.d/fnc.errorlist

    else

        CUTNUM=$(($TOTALNUM - $FILENUM))

        tail -n$CUTNUM $PWD/batchfiles.d/filelist-total.txt > $PWD/batchfiles.d/filelist-work.txt

    fi

done



#print errorlist to stdout

cat $PWD/batchfiles.d/fnc.errorlist



#clean up temp files

rm -r $PWD/batchfiles.d