how to display only hidden files

how can i display only and only hidden file in the current directory.

ls -a|grep "^\."

With zsh:

for all type of files:

print -l .*

for regular files only:

print -l *(.D)

P.S. . and .. are not matched per default.

ls -a|grep "^\."

is not working does grep supports regulaexepession ?

Are you sure it does not work ? That command worked just fine for me. Try this

ls -a | grep -e "^\."

See man grep for other flags. -e allows you to mention a pattern.

g/re/p

re stands for Regular Expression ...

Much easier:

ls -ad .*

Or I prefer:

ls -lad .*

Or even without external commands (assuming builtin printf):

printf "%s\n" .*