cURL is a command line tool and a library (
libcurl) for transferring data over
sockets. It supports a great number of protocols:
HTTP,
HTTPS,
FTP,
SCP,
Gopher, and others.
Wrapper for curl(1) edit
dbohdan 2018-04-06: A simple Tcl 8.5+ and
Jim Tcl wrapper for the command-line
curl client can be found at
https://gitlab.com/dbohdan/lw2-images/raw/master/lib/curl.tcl. It translates cURL's HTTP errors to
errorcodes like
CURL HTTP 404, which you can trap individually with
try.