Find a file within a for loop in command prompt - batch-file

Question

I am attempting to find files to run commands against in a command prompt (batch) script. So far, so good:
#ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION
FOR /R %%I IN ("*.Marker.txt") DO (
SET MARKER=%%I
SET LOG= ???
ECHO MARKER IS !MARKER! AND LOG IS !LOG!
)
Basically, I want to iterate on a pair of files and execute a command on them (for now just echo). The problem I have is that the log file can be in any directory from where the *.Marker.txt file exists. I can't simply just say 100.Marker.log because that's just the filename, not the full path. Some examples:
C:\Temp\Samples\3A5\100.Marker.txt
C:\Temp\Samples\3A5\9\1\100.Marker.log
C:\Temp\Samples\39B\122.Marker.txt
C:\Temp\Samples\39B\2\5\122.Marker.log
So, not really sure what to do here.

Answer 1

You can use PUSHD/POPD to push/pop the working directory during the script and an inner loop.
FOR /R %%I IN ("*.Marker.txt") DO (
SET DIRECTORY=%%~DPI
SET FILENAME=%%~NI
SET MARKER=%%I
PUSHD !DIRECTORY!
FOR /R %%J IN ("!FILENAME!.log") DO (
SET LOGFILE=%%J
ECHO !MARKER!
ECHO !LOGFILE!
)
POPD
)
Not sure how to find a single value, the FOR technically will run on all matches, but if you say you should only have a single value than the inner loop will only run once per marker file. Maybe there's a more efficient way to search for a single file without using FOR?

Answer 2

If all of your files have the same format (text.Marker.ext), then you can use:
#echo off
setlocal EnableDelayedExpansion
for /R %%A IN ("*.Marker.*") DO (
set MARKER=%%A
for /F "tokens=1 delims=." %%B IN ("%%A") do (
set LOG=%%B
)
echo MARKER IS !MARKER! AND LOG IS !LOG!
)
Please note that I don't generally suggest capital letters in batch file.
We make a loop that loops through all subfolders (for /R) trying to find files containing .Marker. (IN ("*.Marker.*")).
We set the output to a variable (MARKER).
Now, we loop through filename found setting delims to .. This means that: token1.token2.token3. . won't be parsed as a token.
Set result to variable.

Answer 3

#echo off
setlocal enabledelayedexpansion
REM following lines to create test environment
md C:\Temp\Samples\3A5\9\1 2>nul
md C:\Temp\Samples\39B\2\5 2>nul
break>C:\Temp\Samples\3A5\100.Marker.txt
break>C:\Temp\Samples\3A5\9\1\100.Marker.log
break>C:\Temp\Samples\39B\122.Marker.txt
break>C:\Temp\Samples\39B\2\5\122.Marker.log
REM end creating test environment
for /R "C:\Temp\Samples\" %%a in ("*.marker.txt") do (
for /f %%b in ('dir /s/b "%%~dpa\%%~na.log"') do (
ECHO Textfile: %%a Logfile: %%b
)
)
The for /R looks recursively for all matching files (*.marker.txt in C:\Temp\Samples\ and subfolders.
The for /f looks for matching log files below the folder, where the marker.txt is.
Output:
Textfile: C:\Temp\Samples\39B\122.Marker.txt Logfile: C:\temp\Samples\39B\2\5\122.Marker.log
Textfile: C:\Temp\Samples\3A5\100.Marker.txt Logfile: C:\temp\Samples\3A5\9\1\100.Marker.log
Note: this assumes, there is only one matching .log for each .txt and it's within the tree below .txt