What does the $$ part mean in perl?
I found it in this code snippet:
my $unique = "P$$" . "M$microseconds";
What does the $$ part mean in perl? I found it in this code
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What does the $$ part mean in perl?
I found it in this code snippet:
my $unique = "P$$" . "M$microseconds";
The
$$means the current PID (Process ID). All predefined Perl variables can be found on the perlvar man page.