gzip

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Gzip/Gunzip a file

Gzip/Gunzip a file.

Keywords
file, programming
Usage
## S3 method for class 'default':
gzip(filename, destname=sprintf("\%s.gz", filename), overwrite=FALSE, remove=TRUE, BFR.SIZE=1e+07, ...)
Arguments
filename
Pathname of input file.
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 gzfile() (see connections) is used to read (write) chunks to (from) the gzip file. If the process is interrupted before completed, the partially written output file is automatically removed.

Value

  • Returns the number of (input) bytes read.

Aliases
  • gzip.default
  • gzip
  • gunzip
Examples
cat(file="foo.txt", "Hello world!")
  gzip("foo.txt")
  print(file.info("foo.txt.gz"))
  gunzip("foo.txt.gz")
  print(file.info("foo.txt"))
  file.remove("foo.txt")
Documentation reproduced from package R.utils, version 1.7.3, License: LGPL (>= 2.1)

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