{"id":4271,"date":"2009-04-02T17:04:00","date_gmt":"2009-04-02T17:04:00","guid":{"rendered":"https:\/\/blogs.msdn.microsoft.com\/powershell\/2009\/04\/02\/many-ways-you-can-set-a-variable-value\/"},"modified":"2019-02-18T13:12:44","modified_gmt":"2019-02-18T20:12:44","slug":"many-ways-you-can-set-a-variable-value","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/powershell\/many-ways-you-can-set-a-variable-value\/","title":{"rendered":"Many² ways you can set a variable value"},"content":{"rendered":"

There are many ways to set a variable’s value.<\/p>\n

I just learnt one more yesterday. If you have others, please add comments<\/p>\n

# Simple
# $ gets the variable, and = will assign it
$a = 1<\/p>\n

# With Variable Scope
# The prepend is the scope, and could be global, script, and others
# Useful when you want to keep things in script scope, or share them out in global scope
$global:a = 1<\/p>\n

# Complex variable names
# Useful if you have a variable with the name ${Yahoo!Id}
${a} = 1<\/p>\n

# Using the Set-Variable cmdlet
# Useful if you want to indirectly set the value
# Has extra parameters like scope
Set-Variable a 1<\/p>\n

# Using the variable provider
# Never useful, just cool
set-item variable:\\a 1<\/p>\n

# Using the variable provider with provider shortcut
# Useful when you want to do ${env:ProgramFiles(x86)}
${variable:a} = 1<\/p>\n

# Using the SessionState (PowerShell APIs)
# Useful when you dont want to access the Runspace Directly
# Useful when you want to set tied variable
# http:\/\/blogs.msdn.com\/powershell\/archive\/2009\/03\/26\/tied-variables-in-powershell.aspx<\/a>
$executioncontext.SessionState.PSVariable.Set(‘a’, 1)<\/p>\n

# Using references
# Useful if you want to indirectly set the value
$ref = [ref]$a
$ref.Value = 10<\/p>\n

Have fun,
Ibrahim Abdul Rahim [MSFT]<\/p>\n","protected":false},"excerpt":{"rendered":"

There are many ways to set a variable’s value. I just learnt one more yesterday. If you have others, please add comments # Simple# $ gets the variable, and = will assign it$a = 1 # With Variable Scope# The prepend is the scope, and could be global, script, and others# Useful when you want […]<\/p>\n","protected":false},"author":600,"featured_media":13641,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[76,33],"class_list":["post-4271","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-powershell","tag-fun-games","tag-language"],"acf":[],"blog_post_summary":"

There are many ways to set a variable’s value. I just learnt one more yesterday. If you have others, please add comments # Simple# $ gets the variable, and = will assign it$a = 1 # With Variable Scope# The prepend is the scope, and could be global, script, and others# Useful when you want […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/posts\/4271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/users\/600"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/comments?post=4271"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/posts\/4271\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/media\/13641"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/media?parent=4271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/categories?post=4271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/tags?post=4271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}