Find and replace at powershell

Question

My textfile looks like this:

-------------------
Set PRGVER="V1.0.12"
Set PRGDIR=C:\PRGSTD\oif_mes\OIFplus
Set PRGEXE=OIFplus.bat
Set PRGTXT=OIFplus

echo %PRGTXT%, %PRGVER%
start "%PRGTXT%" /D%PRGDIR%\%PRGVER%\ %PRGDIR%\%PRGVER%\%PRGEXE%
----------------------

What I wan't to do, edit this file, only change Set PRGVER="V1.0.12" to a new number, like this Set PRGVER=V1.0.13".
When is start the PS Script, I don't know the whole string, the number between "".
I only know, find string variable: Set PRGVER="".

How can I replace only the first value between ""?

Dmitry Aleksandrov · Accepted Answer · 2012-07-16 11:36:50Z

2

Something like this;

$srt = <your text>
$r = $str -replace "PRGVER=`".*`"", "PRGVER=`"your_replace`""

answered Jul 16, 2012 at 11:36

Dmitry Aleksandrov

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Shay Levy · Accepted Answer · 2012-07-16 11:31:28Z

0

The following should do it. It finds the a line that starts with 'Set PRGVER="V', followed by any number of digits, then a dot, any number of digits, a dot, any number of digits, and ends with '"'. When found, the line is replaced with 'Set PRGVER="V1.0.13"' and the result is saved back to the file.

(Get-Content file.txt) -replace '^Set PRGVER="V\d+\.\d+.\d+"$','Set PRGVER="V1.0.13"' | Out-File file.txt

answered Jul 16, 2012 at 11:31

Shay Levy

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Akim · Accepted Answer · 2012-07-16 11:34:46Z

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Following PoSH will replace PRGVER value:

$newValue = "v123.456.789"
gc D:\temp\text | % { $_ -ireplace '(Set PRGVER=)\"([^"]*)\"', ('$1"' + $newValue + '"') };

answered Jul 16, 2012 at 11:34

Akim

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Dung Pham · Accepted Answer · 2020-10-09 04:21:30Z

0

You using key: Ctrl + H

More information: https://learn.microsoft.com/en-us/powershell/scripting/windows-powershell/ise/keyboard-shortcuts-for-the-windows-powershell-ise?view=powershell-7

answered Oct 9, 2020 at 4:21

Dung Pham

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