(PowerShell) GZip Create / Extract .gz File

Demonstrates how to compress a file to create a .gz (GZip) file.

Note: The .gz file format is a compressed file format. It contains a single file. The .gz file format is not an archive format (i.e. it does not contain a collection of files/directories such as with the .zip, .rar, or .tar file formats). GZip is often combined with TAR to create a .tgz (or .tar.gz).

Note: It is possible for a .gz to contain more than one file, but this is very uncommon.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$gzip = New-Object Chilkat.Gzip

# File-to-file GZip:
# Compress "hamlet.xml" to create "hamlet.xml.gz"
$success = $gzip.CompressFile("hamlet.xml","hamlet.xml.gz")
if ($success -ne $true) {
    $($gzip.LastErrorText)
    exit
}

# File-to-file ungzip
# Decompress "hamlet.xml.gz" to create "hamletOut.xml"
$success = $gzip.UncompressFile("hamlet.xml.gz","hamletOut.xml")
if ($success -ne $true) {
    $($gzip.LastErrorText)
    exit
}

# File-to-string ungzip
# Decompress the contents of a .gz directly to a string variable:
# The 2nd argument indicates the charset of the character
# data after it is decompressed.

$xmlStr = $gzip.UncompressFileToString("hamlet.xml.gz","utf-8")
if ($success -ne $true) {
    $($gzip.LastErrorText)
    exit
}

$($xmlStr)

# The Chilkat GZip API provides much more flexibility than shown
# here.  See the reference documentation at 
# http://www.chilkatsoft.com/refdoc for more information