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Re:Perl 7 is going to be Perl 5.32, mostly by bch on Wednesday June 24, 2020 @10:31PM (#23636288)
Tcl is (last I knew) still remarkably big on “the edges” of networks: f5/a10 devices (iRules scripting[0]), used to be (is it still?) used for Cisco iOS scripting[1], was used as the glue language for Tealeaf session/network capture[2] (when it was deployed as on-premises installation ), and control language for Argonne National Lab cluster control[3]...

[0] https://devcentral.f5.com/s/articles/irules-concepts-tcl-the...

[1] https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ios_tcl/co...

[2] https://help.goacoustic.com/hc/en-us/articles/360043736414-P...

[3] https://www.mcs.anl.gov/~wozniak/papers/Swift_Tcl_2015.pdf

Re:Perl 7 is going to be Perl 5.32, mostly by blacksqr on Wednesday June 24, 2020 @11:08PM (#23636493)
Also heavily used in banking and trading systems (Fidessa).
Re:Perl 7 is going to be Perl 5.32, mostly by blacksqr on Wednesday June 24, 2020 @11:14PM (#23636529)
Also heavily used in software testing, including DejaGnu for Linux binutils.
Re:Perl 7 is going to be Perl 5.32, mostly by blacksqr on Wednesday June 24, 2020 @11:25PM (#23636575)
Also heavily used in health care information management (Infor Cloverleaf).
Re:Perl 7 is going to be Perl 5.32, mostly by blacksqr on Wednesday June 24, 2020 @11:38PM (#23636654)
Chip design, internet routing, compiler testing, finance, health care.

A legacy language that's only used anymore when basic infrastructure really, really has to work.