PowerShell Command ‘write-zip’ doesn’t work

compressionpowershell

I am using a Powershell script to compress some files into a .zip file. My entire script looks like this:

Write-Host "Creating Zip File... " -NoNewLine
write-zip ("file1.txt", "file2.txt", "file3.txt", "logs") log.zip
Write-Host "Done"

This script is in a file named compress.ps1. When I am at a command line prompt, I can enter powershell -file compress.ps1 and it works perfectly. However, if I attempt to run the script from the "Windows PowerShell ISE", it doesn't work. The prompts ("Creating Zip File", and "Done") are shown. However, I don't see the .zip file on my file system. This same problem happens if I just right-click on compress.ps1 from Windows Explorer and choose to Open With Windows PowerShell.

What am I doing wrong? Thank you for any insights you can provide!

Best Answer

Mind your working directory too. Try specifying the fully qualified path names of the files instead of just their short names and see what happens.

Related Solutions

Powershell – How to Zip and Unzip Files

DotNetZip will allow you to do this from PowerShell. It is not a one-liner, but the library will allow you to write the PowerShell script you need.

You can also use the COM interface, see Compress Files with Windows PowerShell then package a Windows Vista Sidebar Gadget.

Googling "zip powershell" or "unzip powershell" might also turn up useful results.

Windows – Does Windows Have a Built-in ZIP Command for Command Line?

It's not built into Windows, but it's in the Resource Kit Tools as COMPRESS,

C:\>compress /?

Syntax:

COMPRESS [-R] [-D] [-S] [ -Z | -ZX ] Source Destination
COMPRESS -R [-D] [-S] [ -Z | -ZX ] Source [Destination]

Description:
Compresses one or more files.

Parameter List:
-R Rename compressed files.

-D Update compressed files only if out of date.

-S Suppress copyright information.

-ZX LZX compression. This is default compression.

-Z MS-ZIP compression.

Source Source file specification. Wildcards may be
used.

Destination Destination file | path specification.
Destination may be a directory. If Source is
multiple files and -r is not specified,
Destination must be a directory.

Examples:

COMPRESS temp.txt compressed.txt
COMPRESS -R *.*
COMPRESS -R *.exe *.dll compressed_dir

Best Answer

Related Solutions

Powershell – How to Zip and Unzip Files

Windows – Does Windows Have a Built-in ZIP Command for Command Line?

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