Tcl vs DM

Unlike *sh Tcl has a rich standard library.

Unlike in sh you don't need to quote your variable substitutions ('"$1"').
Expanding of arguments occurs mostly explicit and if yet expected in-place (e. g. using eval or subst) it follows strict and well clear rules.
So exec test $argv would execute test with single argument.
And appending {*} before $argv would execute test with all arguments (list expansion).

With a little care you can have the same script work on Linux, *BSD, OS X and Windows.

You can expect a reasonably recent version of Tcl to either installed or available in the repositories of any popular open source *nix.

Tcl can operate at the same level of abstraction as the POSIX shell, which makes it easier to manipulate the output of other programs.

Tcl enables easy deployment through self-contained binaries known as starpacks.

Want to run something 5 times? Here you go: set i 0; time { puts done-[incr i] } 5
If you need real conditional cycle? Not a problem: for {set ready 0; set i 1} {$i <= 100 && !$ready} {incr i} { if {[exec do-some-thing] eq "ready" } {set ready 1} }
Want to measure performance of something or repeat it max 300 times and not longer than 1 seconds? Very simple: timerate { after 20 } 1000 300
How about notifying yourself when some http-server is back online? Sure thing: while {[catch { close [socket localhost 80] }]} { after 1000 }; puts "\7\7\7ONLINE!"
And you can do it also fully asynchronously using events etc.

DM and BYOND are constantly being developed and expanded, with feedback from the community, and Lummox as the lead developer.

The BYOND community is helpful, and has been active for decades, so there are many solutions available. You can find many answers in the forums.

Documentation is easy to learn, and can be found here.

Makes networking easy, so you can just make your game.

One of the easiest to learn languages. Similar to Python and C++.