Support file upload in the remctl command-line client

[jonrober]

No description provided.

[macrotex]

Something like this would be nice:

$ remctl server command subcommand -f /large/file

The backend command could consume the data in the large file as the last argument (stdin=last).

[caius-martinus]

$ remctl server command subcommand -f /large/file

That would be great.

Or even a classic pipe to allow the command to be fed with stdin, something like:

cat file.txt | remctl <server> <command> <args>