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@cmd = ( 'echo', 'identifier', 'a string', '"pre quoted"' );
system(@cmd); # identifier "a string" "pre quoted"
$cmd = "@cmd";
system($cmd); # identifier a string "pre quoted"
The same name on every site (unless it is taken already)
A different name for every site
The same name for sites I don't care about, but different names on sites I do care about
Different names for sites I don't care about, but the same name on sites I do care about
The anonymous account
Someone else's username
Root, after hacking into the site
Results (238 votes),