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sysseek()

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sysseek()

The new sysseek() operator is a variant of seek() that sets and gets the file's system read/write position, using the lseek(2) system call. It is the only reliable way to seek before using sysread() or syswrite(). Its return value is the new position, or the undefined value on failure.

Source: what's new for perl5.004
Copyright: Larry Wall, et al.

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