echo $ linux

[sozonov_alexey]

$_- The default parameter for a lot of functions.
$.- Holds the current record or line number of the file handle that was last read. It is read-only and will be reset to 0 when the file handle is closed.
$/- Holds the input record separator. The record separator is usually the newline character. However, if $/ is set to an empty string, two or more

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[krevetka_flo]

C днeм Рoждeния. Cъeм-ка зeфиринкy в шoкoладe за Ваc…