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Like this?
paste -sd, infile|sed "s/,/','/g;s/^/(/;s/\$/)/"

Or a bit shorter (after looking at Guru's solution :)):
paste -sd, infile|sed "s/,/','/g;s/.*/(&)/"

This seems quite normal to me. We must assume that you are not logged in as root.

If you want to see all "hidden" files and directories:
ls -ald .??*


Btw:
ls -lad
Will not display anything...

Are you using a special file manager? (e.g. Nautilus...)
what does ls -ald .foldername return?

awk '{printf $1","}' file

could try as..
grep -i 'A1$' inputfile
or
grep -iw 'A1' inputfile