Perlの組み込み関数 open の翻訳 - perldoc.jp
open FILEHANDLE,MODE,EXPR open FILEHANDLE,MODE,EXPR,LIST open FILEHANDLE,MODE,REFERENCE open FILEHANDLE,EXPR open FILEHANDLE Associates an internal FILEHANDLE with the external file specified by EXPR. That filehandle will subsequently allow you to perform I/O operations on that file, such as reading from it or writing to it.
perlvar - Perl で定義済みの変数 - perldoc.jp
The following names have special meaning to Perl. Most punctuation names have reasonable mnemonics, or analogs in the shells. Nevertheless, if you wish to use long variable names, you need only say 以下の名前は Perl では特別な意味を持ちます。 記号的な名前の多くは記憶法があるか、シェルでの類推が可能です。 それでも長い名前を使用したい場合には use English; at the top of your program. This will alias all the short names to the long names in the current package. Some e
Perlの組み込み関数 map の翻訳 - perldoc.jp
Evaluates the BLOCK or EXPR for each element of LIST (locally setting $_ to each element) and composes a list of the results of each such evaluation. Each element of LIST may produce zero, one, or more elements in the generated list, so the number of elements in the generated list may differ from that in LIST. In scalar context, returns the total number of elements so generated. In list context, r
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