Vista - Powershell Operators

I was stumbling on the internet about powershell script when I found
this one

get-childitem -recurse | where-object { $_.CreationTime -ilt
[datetime]::now.adddays(-120) } | move-item -destination 'C:\Documents
and
Settings\administrator\My Documents\My Scripts\Location2'

source: http://www.eggheadcafe.com/software/...intain-fo.aspx

I tried it and love it, I know was it does, but I'm confused by
$_.CreationTime -ilt [datetime]::now.adddays(-120)

This is the first time I see something like this

Can you please explain this please ?

-itl : first time I see this operator

[datetime]::now.adddays(-120) : first time I see this kind of
construction (I would love to know more about this kind of trick)

I tried to find some info on -itl, and I found this
http://d.hatena.ne.jp/newpops/20070111/p1

This seems to be all the powershell operators, but some of them are
definitely unknown

"eq","ne","ge","gt","lt","le","like","notlike","match",
"notmatch","ieq","ine","ige","igt","ile","ilt","ilike",
"inotlike","imatch","inotmatch","ceq","cne","cge","cgt",
"clt","cle","clike","cnotlike","cmatch","cnotmatch"

Is there a documentation somewhere about these operators ? all of
them ?

In this case the i is not applicable.

i = ignore case
c= case sensative

Because numbers do not have case. I would assume that -ilt is exactly the
same as -lt and -clt

Excerpt from about_operator

OPERATORS
The comparison operators for the shell, by default, the comparison
operators are not case sensitive when comparing strings. Case
sensitive variants exist for comparison operators as well as explicit
case insensitive operators.

-eq Equal (case insensitive)
-ne Not equal (case insensitive)
-ge Greater than or equal (case insensitive)
-gt Greater than (case insensitive)
-lt Less than (case insensitive)
-le Less than or equal (case insensitive)
-like Wildcard comparison (case insensitive)
-notlike Wildcard comparison (case insensitive)
-match Regular expression comparison (case insensitive)
-notmatch Regular expression comparison (case insensitive)
-replace Replace operator (case insensitive)
-contains Containment operator (case insensitive)
-notcontains Containment operator (case insensitive)

-ieq Case insensitive equal
-ine Case insensitive not equal
-ige Case insensitive greater than or equal
-igt Case insensitive greater than
-ile Case insensitive less than or equal
-ilt Case insensitive less than
-ilike Case insensitive equal
-inotlike Case insensitive equal
-imatch Case insensitive regular expression comparison
-inotmatch Case insensitive regular expression comparison
-ireplace Case insensitive replace operator
-icontains Case insensitive containment operator
-inotcontains Case insensitive containment operator

-ceq Equal (case sensitive)
-cne Not equal (case sensitive)
-cge Greater than or equal (case sensitive)
-cgt Greater than (case sensitive)
-clt Less than (case sensitive)
-cle Less than or equal (case sensitive)
-clike Wildcard comparison (case sensitive)
-cnotlike Wildcard comparison (case sensitive)
-cmatch Regular expression comparison (case sensitive)
-cnotmatch Regular expression comparison (case sensitive)
-creplace Replace operator (case sensitive)
-ccontains Containment operator (case sensitive)
-cnotcontains Containment operator (case sensitive)

-is Is of a type
-isnot Is not of a type
-as As a type, no error if conversion fails


Brandon Shell
---------------
Blog: http://www.bsonposh.com/
PSH Scripts Project: www.codeplex.com/psobject

P> I was stumbling on the internet about powershell script when I found
P> this one
P>
P> get-childitem -recurse | where-object { $_.CreationTime -ilt
P> [datetime]::now.adddays(-120) } | move-item -destination
P> 'C:\Documents
P> and
P> Settings\administrator\My Documents\My Scripts\Location2'
P> source:
P> http://www.eggheadcafe.com/software/...eitem-and-main
P> tain-fo.aspx
P>
P> I tried it and love it, I know was it does, but I'm confused by
P> $_.CreationTime -ilt [datetime]::now.adddays(-120)
P>
P> This is the first time I see something like this
P>
P> Can you please explain this please ?
P>
P> -itl : first time I see this operator
P>
P> [datetime]::now.adddays(-120) : first time I see this kind of
P> construction (I would love to know more about this kind of trick)
P>
P> I tried to find some info on -itl, and I found this
P> http://d.hatena.ne.jp/newpops/20070111/p1
P>
P> This seems to be all the powershell operators, but some of them are
P> definitely unknown
P>
P> "eq","ne","ge","gt","lt","le","like","notlike","match",
P> "notmatch","ieq","ine","ige","igt","ile","ilt","ilike",
P> "inotlike","imatch","inotmatch","ceq","cne","cge","cgt",
P> "clt","cle","clike","cnotlike","cmatch","cnotmatch"
P>
P> Is there a documentation somewhere about these operators ? all of
P> them ?
P>

On Nov 19, 10:26*pm, Personne <cpdiv...@xxxxxx> wrote:
I assume you're meaning the [datetime]::now rather than the .adddays.

Now is a static property of the system.datetime datatype and the
double colon is simply the syntax for calling a static method or
property.

You can find the static methods and properties of datetime with:

[datetime] | get-member -static