This function returns a string, or NULL on error.
I<The caller must free the returned string after use>.
+=head2 guestfs_df
+
+ char *guestfs_df (guestfs_h *handle);
+
+This command runs the C<df> command to report disk space used.
+
+This command is mostly useful for interactive sessions. It
+is I<not> intended that you try to parse the output string.
+Use C<statvfs> from programs.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
+=head2 guestfs_df_h
+
+ char *guestfs_df_h (guestfs_h *handle);
+
+This command runs the C<df -h> command to report disk space used
+in human-readable format.
+
+This command is mostly useful for interactive sessions. It
+is I<not> intended that you try to parse the output string.
+Use C<statvfs> from programs.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
=head2 guestfs_dmesg
char *guestfs_dmesg (guestfs_h *handle);