org.unix4j.unix.tail

Interface TailOptions

All Superinterfaces:

Iterable<TailOption>, OptionSet<TailOption>

All Known Implementing Classes:

TailOption, TailOptions.Default, TailOptionSet_cqs

public interface TailOptions
extends OptionSet<TailOption>

Interface implemented by all option sets for the tail command. It is recommended to use Tail.Options to specify a valid combination of options.

The options for the tail command are:

	-c		--chars		The count argument is in units of characters instead of lines. Starts from 1 and includes line ending characters.
	-q		--suppressHeaders		Suppresses printing of headers when multiple files are being examined.
	-s		--countFromStart		The count argument is relative to the beginning of the file instead of counting from the end of the file. For instance, tail -s 10 prints the lines starting from line 10; tail -s 1 prints the whole file.

This interface serves as an alias for the extended interface to simplify the command signature methods by avoiding generic parameters.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	TailOptions.Default Default implementation for a modifiable option set.

Field Summary

Fields

Modifier and Type	Field and Description
static ValueConverter<TailOptions>	CONVERTER Value converter for TailOptions based on an OptionSetConverters.OptionSetConverter.
static TailOptions	EMPTY Constant for an empty option set.

Method Summary

Methods inherited from interface org.unix4j.option.OptionSet

asSet, isSet, iterator, optionType, size, useAcronymFor

Field Detail

EMPTY

static final TailOptions EMPTY

Constant for an empty option set.

CONVERTER

static final ValueConverter<TailOptions> CONVERTER

Value converter for TailOptions based on an OptionSetConverters.OptionSetConverter.