lftp
lftp :~> set ftps:initial-prot
""
lftp :~> set ftp:ssl-force
true
lftp :~> set ftp:ssl-protect-data
true
lftp :~> open ftps:
//ftp.box.com:990
lftp ftp.box.com:~> user username
@xxxx
.edu
Password:
lftp username
@indiana
.edu
@ftp
.box.com:~> ls
...
See original post
https://uisapp2.iu.edu/confluence-prd/display/SOICKB/Using+Box+under+Linux