This is an off the cuff answer:
for dir in $(ls ); do echo " $dir - this is the directory"; for csv in $(ls $dir/*csv); do cat $csv|sed -e "s/\(.*\)/$dir, \1/g"; done; done
You could then add options to specify file names, e.g.
for myfile in EA_sing EA_ska EA-tat; do for csv in $(ls $dir/$myfile*)...
and then pipe them to a file of your choice, e.g.
do cat $csv|sed -e "s/\(.*\)/$dir, \1/g" >> $(echo "$myfile_complete.csv")
which might then be combined into something like this:
for dir in aa bb cc dd; do for file in EA_sing EA_ska EA_tat; do for myfile in $(ls $dir/$file*);do echo "parsing $myfile"; cat $myfile | sed -e "s/\(.*\)/$dir,\1/g" >> $(echo "$file\_combined.csv"); done; done; done
Or more to the point:
for dir in $(ls -d */); do for file in $(ls $dir*csv); do echo "this is my file $file"; cat $file|sed -e "s|\(.*\)|$(echo $dir|sed -e 's/\///g'), \1|g";done; done