Find text in a data stream

[Joe Caverly]

Further to the thread FFIND TPIPE here is a method to search for text in a data stream using PowerShell via PSHELL.

e:\utils>pshell /s "get-content -path test -stream 'look' | select-string November"

November

Joe

 

[Kachupp]

off topic - Never attempted to get my head around powershell until now

 

[drwtsn32]

Powershell is amazing. The fact that it transmits objects through the pipeline is extremely powerful. (It does not send basic text like cmd, bash, tcc, etc....)

 

[Joe Caverly]

Well, for those new to Powershell, please remember that PowerShell returns objects, not strings.

e:\utils>pshell /s "(get-content -path test -stream 'look' | select-string November).GetType()"

IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     False    MatchInfo                                System.Object

Note that in post #1 of this thread, there is a blank line and then "November". That's because PowerShell returned an object.

To eliminate the blank line, cast the return type of the Object as a string;

e:\utils>pshell /s "(get-content -path test -stream 'look' | select-string November).ToString()"
November

Proof;

e:\utils>pshell /s "((get-content -path test -stream 'look' | select-string November).ToString()).GetType()"

IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     True     String                                   System.Object

Joe