What are "all systems"? Most mainstream Debian or Fedora based systems install Perl by default (but not necessarily in specialized settings such as embedded/bo

What are "all systems"? Most mainstream Debian or Fedora based systems install Perl by default (but not necessarily in specialized settings such as embedded/boot/rescue systems). Alpine linux does not include it in standard images. FreeBSD (and probably Net/OpenBSD) don't install Perl by default. The current macOS still includes it, but Apple has notified that it will be removed at some point. Windows does not include Perl or awk by default. Sed and Awk are part of POSIX, and maybe more importantly also part of Busybox. They're almost always available when Perl is available, while the reverse is not true.