bunzip2 {R.utils}R Documentation

Bunzip a file

Description

Bunzip a file.

Usage

## Default S3 method:
bunzip2(filename, destname=gsub("[.]bz2$", "", filename), overwrite=FALSE, remove=TRUE, BFR.SIZE=1e+07, ...)

Arguments

filename Pathname of (bzip2'ed) input file to be bunzip2'ed.
destname Pathname of output file.
overwrite If the output file already exists, then if overwrite is TRUE the file is silently overwritting, otherwise an exception is thrown.
remove If TRUE, the input file is removed afterward, otherwise not.
BFR.SIZE The number of bytes read in each chunk.
... Not used.

Details

Internally bzfile() (see connections) is used to read chunks of the bzip2'ed file, which are then written to the output file.

Value

Returns the number of (input/compressed) bytes read.

Author(s)

Henrik Bengtsson (http://www.braju.com/R/)


[Package R.utils version 1.1.1 Index]