Get the version of TCL from the command-line?
I'm looking for a very straight-forward way of getting the version of the TCL installed on a machine from the command-line. For most programming languages, something along the lines of
languagename -v
provides the information that I want. This does not seem to be an option for tclsh.
The TCL FAQ Q.B21 suggests
echo 'puts $tcl_version;exit 0' | tclsh
but I wonder if there is anything more straight-forward and cross-platform? (I suspect that this would fail mightily on a Microsoft Operating System.)
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EDIT: Just to emphasize that I'm looking for something that can be executed directly from the operating system command-line. There's all kinds of information available once you start tclsh, but I'm trying to avoid that to ease automated discovery.
Answer
This might sound too simplistic, but if you made a script file that contained the commands:
puts $tcl_version
And then ran tclsh sillyscript.tcl, that would execute on all platforms, assuming binary is in PATH. It certainly isn't fancy or flashy, or even neat, but it satisfies that requirement AFAIK.
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I got curious, so I tried it and without the quotes:
echo puts $tcl_version;exit 0 | tclsh
Executes just fine on my windows box... maybe platform detection prior to the TCL detection is an option?