gvfs-cat
gvfs-cat works just like the traditional cat utility, but using gvfs locations instead of local files: for example you can use something like smb://server/resource/file.txt as location.
Note: just pipe through cat if you need its formatting options like -n, -T or other.
The following options are understood:
-?, --help
--version
On success 0 is returned, a non-zero failure code otherwise.
cat(1)