# This is another simple script which shows that ‹ssh› can also be
# used for moving data across the network, like ‹nc›, but much more
# securely. Of course, there is some overhead involved, but in 98%
# of the cases, ‹ssh› is a much better choice.

set -x

# First notice that ‹ssh› works non-interactively if we give it a
# command to execute, like this:

ssh aisa echo hello world

# Of course we can pipe the output to a (local) command:

ssh aisa echo hello world | cut -f1 -d' '

# We can also pipe stuff to the ‹stdin› of ssh and it appears as the
# ‹stdin› of the remote command, like the following. Unfortunately,
# we have to do double escaping, because the command is given to a
# shell at the remote end, but the quotes were already stripped by
# the local shell (when constructing ‹argv› for ‹ssh›).

echo hello world | ssh aisa "cut -f2 -d' '"

# That's all for ‹ssh›. Let's move on to ‹curl› and then finally some C:
#
#     $ micro curl.sh