Powershell - OR operator in Select-string

Question

In powershell is that a way to put multiple search pattern ? Example below command, I want to search those string that has ASA or TMP. But it doesn't work. The search should match as a single word example: ASA is true but TIASAP is false

Get-ChildItem E:\Test\Workflow -Exclude *.bak -Recurse | Select-String -pattern "ASA" -or "TMP" -SimpleMatch | Where-Object LineNumber -le 50 | group path | select name

Martin Brandl · Accepted Answer · 2016-05-18 10:36:23Z

8

If you omit the -SimpleMatch switch, the Select-String cmdlet uses regex so you can just search for ASA|TMP:

Get-ChildItem E:\Test\Workflow -Exclude *.bak -Recurse | Select-String -pattern "ASA|TMP" | Where-Object LineNumber -le 50 | group path | select name

answered May 18, 2016 at 10:36

Martin Brandl

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2 Comments

user664481 Over a year ago

how to match as a single word ? example ASA is ture but YIASAO is false

Martin Brandl Over a year ago

You can use a word boundary for that \B: So you pattern need to look like this: \bASA\b|\bTMP\b

Sean · Accepted Answer · 2016-05-18 13:54:18Z

2

Just pass a list of strings you want to match to the -Pattern parameter.

For example, to search all ps1 files for the words function or check do:

Get-ChildItem *.ps1 | Select-String -Pattern function,check

This would make your example:

Get-ChildItem E:\Test\Workflow -Exclude *.bak -Recurse | Select-String -pattern ASA,TMP -SimpleMatch

answered May 18, 2016 at 13:54

Sean

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