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join

Perl 5 version 26.1 documentation
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join

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage
  • join EXPR,LIST

    Joins the separate strings of LIST into a single string with fields separated by the value of EXPR, and returns that new string. Example:

    1.    my $rec = join(':', $login,$passwd,$uid,$gid,$gcos,$home,$shell);

    Beware that unlike split, join doesn't take a pattern as its first argument. Compare split.