Perl5 リファレンス


Imports some semantics into the current package from the named module, generally by aliasing certain subroutine or variable names into your package.  
import There is no builtin `import' function. It is just an ordinary method (subroutine) defined (or inherited) by modules that wish to export names to another module.
index 指定された文字列から、部分文字列の開始位置を返します。
int 指定された数字の整数部分を返します。
ioctl Implements the ioctl(2) function.