CODEWITHSUNDEEP
batch-filecmd
RoSi
RoSi

Reputation: 37

cmd: How to extract part of a string?

in windows command line script I have string variable for an example:

AB_CD RR CRR LH 8AH_M22 1.1 2050_gra.pdf

which is a file name, where I need to extract to a different variable string (in this case) 2050 (user entered time).

It is always bounded by at least one space (usually three) on the left side, and always by _gra.pdf on the right side.

It is not always 4 digits long, and someone might put a dot or comma to separate hours and minutes. So it might look also like this:

Basically is anything between _gra.pdf and nearest space on the left side.

Upvotes: 1

Views: 1601

Answers (1)

Stephan
Stephan

Reputation: 56180

set "x=AB_CD RR CRR LH 8AH_M22 1.1 2050_gra.pdf"

REM get last element:
for %%i in ("%x: =" "%") do set last=%%i
rem split it by `_`:
for /f "Tokens=1 delims=_" %%i in (%last%) do set utim=%%~i
echo %utim%

edit: to meet "extract anything between _M and next space":

set "x=AB_CD RR CRR LH 8AH_M  22 1.1  2050_gra.pdf"
REM delete anything until (including) "_M":
for %%i in ("%x:*_M=%") do set "y=%%i"
REM get string until next space:
for /f "Tokens=1" %%i in (%y%) do set "utim=%%~i"
echo %utim%

Upvotes: 4

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