[hasenj]

I actually do this instead:

    find . | grep "\.txt$"

[rejap]

once you mentioned it, the original commands which are compared are not equivalent. Dir does case insensitive search, find is case sensitive. The equivalent would be:

  find . | grep -i "\.txt$"

[Tiksi]

You can do a case insensitive search with -iname: find . -iname "*.txt"