Bash is not just Bash but also sed, awk and all the other goodies. You can grow Bash scripts from the command line. You don’t have to worry about things, everything is a string is a number is a stream. One could go so far as to argue that shell pipes behave quite distinctly functional-programming-ly(?).

Plus it’s some sort of middle ground between “BDFL tells you to put a space there“ and “one day, archaeologists will find a script written in Perl, awk and csh and it will become the new millenium’s Rosetta stone“.