How can I run external programs using Perl 6? (e.g. like “system” in Perl 5)

Question

I can use system in Perl 5 to run external programs. I like to think of system like a miniature \"Linux command line\" inside Perl. However, I cann

Answer 1

Perl6 actually has two commands that replace system from Perl 5.

In Perl6, shell passes its argument to the shell, similar to Perl 5's system when it has one argument that contains metacharacters.

In Perl6, run tries to avoid using the shell. It takes its first argument as a command and the remaining arguments as arguments to that command, similar to Perl 5's system when it has multiple arguments.

For example:

shell('ls > file.log.txt');   # Capture output from ls (shell does all the parsing, etc)

run('ls','-l','-r','-t');     # Run ls with -l, -r, and -t flags
run('ls','-lrt');             # Ditto

See also this 2014 Perl 6 Advent post on "running external programs".