{"id":1097,"date":"2009-12-14T00:45:11","date_gmt":"2009-12-14T05:45:11","guid":{"rendered":"http:\/\/g33kinfo.com\/info\/?p=1097"},"modified":"2009-12-14T00:45:11","modified_gmt":"2009-12-14T05:45:11","slug":"retty","status":"publish","type":"post","link":"https:\/\/g33kinfo.com\/info\/retty\/","title":{"rendered":"Retty"},"content":{"rendered":"

Retty (short for “remote tty”) makes TCP connections available as pseudo ttys. It allows you to use access servers with direct access to the
\nmodems (such as Cisco NAS) as ordinary dial-out modems for faxing, sending sms or visiting BBS’. It offers functionality similar to Cisco’s Dialout Utility, but on GNU\/Linux instead of Windows.<\/p>\n

It can also attach to processes running on another terminal. This is useful, for example, when you run an application locally and then decide you want to use that running application from some remote location. You can run retty on it, do your work, and detach application back again. <\/p>\n

Its advantage over screen is that you don’t have to run the processes on retty in advance. Unlike screen, you need to make no special provisions in advance – just get the process’ pid and attach it anytime. <\/p>\n

By default, retty attaches file descriptors 0, 1 and 2 of process. That should be enough in most cases, but will not do in some special ones. In such case, you have to check \/proc\/\/fd and force retty to attach correct file descriptors instead. <\/p>\n

Options
\n-v
\nDisplay version information.<\/p>\n

-h
\nDisplay usage information.<\/p>\n

-0 fd
\nSpecify file descriptor that process we want to attach uses as input. Default value is 0 (stdin).<\/p>\n

-1 fd
\nSpecify file descriptor that process we want to attach uses as output. Default value is 1 (stdout).<\/p>\n

-2 fd
\nSpecify file descriptor that process we want to attach uses for error outputs. Default value is 2 (stderr).<\/p>\n

PID
\nPID of process that we want to attach. If retty is run as ordinary user, it can attach only processes owned by that user. If run as root, retty can attach probably anything (not always good idea).<\/p>\n

Bugs<\/p>\n