Display all environment variables from a running PowerShell script

问题

I need to display all configured environment variables in a PowerShell script at runtime. Normally when displaying environment variables I can just use one of the following at the shell (among other techniques, but these are simple):

gci env:*
ls Env:

However, I have a script being called from another program, and when I use one of the above calls in the script, instead of being presented with environment variables and their values, I instead get a list of System.Collections.DictionaryEntry types instead of the variables and their values. Inside of a PowerShell script, how can I display all environment variables?

回答1:

Shorter version:

gci env:* | sort-object name

This will display both the name and value.

回答2:

Shortest version (with variables sorted by name):

gci env:

回答3:

I finally fumbled my way into a solution by iterating over each entry in the dictionary:

(gci env:*).GetEnumerator() | Sort-Object Name | Out-String

回答4:

Short version with a wild card filter:

gci env: | where name -like 'Pro*'

来源：https://stackoverflow.com/questions/39800481/display-all-environment-variables-from-a-running-powershell-script