Front-end for the corresponding built-in
seek function, which
sets a filehandle's position in the file.
Takes the following arguments:
The offset where you want to set the position.
The position in the file that the offset is relative to. Possible values
0 for the beginning of the file,
1 for the current position, or
end of file. May also be expressed as the following constants, which are
Beginning of file
End of file