Using Dot Sourcing is a quick and easy way of getting functions or data into your Powershell console or script.<\/p>\n\n\n\n
If you run a Powershell script from a console, all the data in memory is deleted when the script ends (unlike the ISE where it is still in memory). This is because the script is running in a different session (memory space) so is separate from the Powershell console that runs the script.<\/p>\n\n\n\n
This quick script will demonstrate this.<\/p>\n\n\n
If I run this script in the ISE I will get (surprisingly enough) no output. but I am able to see the variables $one, $two, $three and $bob<\/p>\n\n\n\n<\/figure>\n\n\n\n
Now if I try the same thing in a standard Powershell window I get.<\/p>\n\n\n\n<\/figure>\n\n\n\n
The variables in the script test.ps1 are not accessible in the console once the script has finished executing. Effectively the test.ps1 script is running in a separate part of memory (or a session) that is cleared down when exiting.<\/p>\n\n\n\n
So now we Dot Source the script.<\/p>\n\n\n\n<\/figure>\n\n\n\n
By adding a full stop in front of the script we instruct Powershell to run in the current session. This makes all the variables available after execution.<\/p>\n\n\n\n
It also works the other way in that any data in memory is available to the script when it runs.<\/p>\n\n\n\n<\/figure>\n\n\n\n
So if you don’t want to write a module but you do want some code available in your Powershell console (session) just Dot Source it.<\/p>\n","protected":false},"excerpt":{"rendered":"
Using Dot Sourcing is a quick and easy way of getting functions or data into your Powershell console or script. If you run a Powershell script from a console, all the data in memory is deleted when the script ends (unlike the ISE where it is still in memory).This is because the script is running…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[5,4],"tags":[21,23,13,22],"class_list":["post-104","post","type-post","status-publish","format-standard","hentry","category-powercli","category-powershell","tag-dot-source","tag-learning","tag-powershell","tag-tutorial"],"_links":{"self":[{"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=104"}],"version-history":[{"count":0,"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=\/wp\/v2\/posts\/104\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jasonstreet.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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