I'm trying to run run lex programs with vim using :! <command>. Earlier it used to complete filenames on pressing TAB, but now it just adds ^I.

For example,
:! lex pgmTAB
doesnt add "01.l" to complete the filename, even when there are no other files starting with "pgm"

I didn't have this problem a few days ago, and the TAB works fine on completing filenames in the shell.

stty shows the following output now, but it used to show much more stuff earlier:
speed 38400 baud; line = 0;
-brkint -imaxbel

Could the problem be due to this?

Another question, how do I restore the settings of vim to its defaults?

The terminal is xterm and the vim version is 6.2

Try renaming the ".rcvim" file located at your home directory to something else and see if that helps.

Good luck!

I think you meant the .vimrc file. I had copied vimrc_example.vim from /usr/share/vim/vim62/ when there was this problem, but forgot to remove the .vim extension while renaming

Now the file's there in the home directory and vim is working fine Thanks!

BTW, stty used to show a lot more stuff in the output, but now it shows only three or four settings... What's the reson? Just curious...