Get a string in a line with a string pattern (CMD)-CodePudding

I'm using windows command prompt (cmd).
I have this file "myfile.txt" and i want to get the string in each line that match my pattern.

For instance, if i have this in "myfile.txt":

The file alpha_123.txt has been created
The file gama_234.txt has been created
The file alpha_789.txt has been created

And if I search for "alpha", the result should be this:
alpha_123.txt
alpha_789.txt

For now i have this code: findstr /c "alpha" myfile.txt but it returns the full line, but i just want the specific string.

Thanks in advance!

CodePudding user response：

Assuming you're in the correct path, something like this should work. Include or skip echo off and echo on as you see fit.

echo off
for /f "tokens=3 delims= " %G IN ('findstr "alpha" MyFile.txt') DO echo %G
echo on

Or, perhaps something along the lines of this

echo off
for /f "tokens=3 delims= " %G IN ('findstr /r "\alpha_.*txt" MyFile.txt') DO echo %G
echo on

CodePudding user response：

This can be used at a cmd command-prompt on windows.

powershell -nop -c (sls 'alpha.*?\s' myfile.txt).Matches.Value

If placed into a cmd batch-file, aliases should not be used.

powershell -NoLogo -NoProfile -Command ^
    (Select-String -Pattern 'alpha.*?\s' -Path 'myfile.txt').Matches.Value