My Tcl related projects:
A Tcl interface to the linux kernel's Inotify service. It provides a Tcl package that exports the full functionality of the underlying Inotify facility to the Tcl programming language.
A Tcl interface to the Net-SNMP library for management of remote Agents. It supports all the standard SNMP v1/v2/v3 operations: connect, close, get, set, getnext, walk, bulkget, bulkwalk, trap, translate and others.
A Tcl interface to the *nix syslog service. It provides a Tcl package that allows Tcl scripts to log messages to syslog.
A Tcl interface to the PAM (Pluggable Authentication Modules) service of Linux. It provides a Tcl package that allows Tcl scripts to use PAM to authenticate users and programs.
A Tcl interface to POSIX Message Queues. It provides a Tcl package that allows scripts to create/open/close/unlink multiple parallel message queues, and to send/receive messages synchronously and asynchronously to/from them.
A Tcl interface to the POSIX mmap(2) system call. It provides a Tcl package that allows Tcl scripts to: 1) Memory map files for improved access efficiency; 2) Share memory between related processes; 3) Easily implement cyclic persistent log files.
Lastly, I have made contributions to Tclx: http://sourceforge.net/tracker/index.php?func=detail&aid=1922157&group_id=13247&atid=313247