Learned programming with Pascal, and Turbo Pascal (not the language itself) was what blew my mind back then. The Swag libraries weren't the language itself neither, but for pre-internet age they were a jump forward.
Then had to do things in OS/2, and then it was the REXX turn. Shell scripting didn't had to be as basic as I knew from DOS. Some years later moved to bash, and from complex script to long but very powerful oneliners, so it was another shock.
Still was working with OS/2 when learned Perl, and regexes, and its hashes, and all with some interesting semantic approach on that. And for many years it was my "complex" shell scripting language. Python was not as mindblowing or at least had the same kind of impact on me.
Then had to do things in OS/2, and then it was the REXX turn. Shell scripting didn't had to be as basic as I knew from DOS. Some years later moved to bash, and from complex script to long but very powerful oneliners, so it was another shock.
Still was working with OS/2 when learned Perl, and regexes, and its hashes, and all with some interesting semantic approach on that. And for many years it was my "complex" shell scripting language. Python was not as mindblowing or at least had the same kind of impact on me.