Reading from a csv file and extracting certain data columns based on first column value

Question

This is my first batch program and I have been searching online but still struggling to write up a solution.

I have the following CSV file:

\"RH\",2013/0         


        

Answer 1

(
FOR /F "tokens=1-18* delims=," %%A IN (%_InputFile%) DO (
  if "%%~A"=="RH" echo %%~B
  if "%%~A"=="SH" echo %%~D
 )
)>youroutputfilename

Should work - no need to assign all the values to different variables - BUT if you plan to use them, then

FOR /F "tokens=1-18* delims=," %%A IN (%_InputFile%) DO (
...
Set _var17=%%Q
Set _var18=%%R
CALL :PROCESS
)
...
GOTO :EOF

:PROCESS
IF %_var1%=="RH" echo %_var2%
IF %_var1%=="SH" echo %_var4%
GOTO :EOF

Note that with this method, since you are assigning %%x to _varx then if %%x is quoted, the quotes will be INCLUDED in the value assigned. To remove the enclosing quotes (if they exist) use SET _varx=%%~x.

---

Addendum 20130703-1956Z for OP's problem

@ECHO OFF
SETLOCAL
SET _Inputfile=u:\noname1.txt
(
FOR /F "tokens=1-18* delims=," %%A IN (%_InputFile%) DO (
  SET "RH="
  SET "SH="
  ECHO(%%A|FINDSTR /l /c:"\"RH\"" >NUL
  IF NOT ERRORLEVEL 1 SET RH=Y
  ECHO(%%A|FINDSTR /l /c:"\"SH\"" >NUL
  IF NOT ERRORLEVEL 1 SET SH=Y
  if DEFINED RH echo %%~B
  if DEFINED SH echo %%~D
 )
)>u:\youroutputfilename
TYPE u:\youroutputfilename
del u:\youroutputfilename
echo========First way

(
FOR /F "tokens=1-18* delims=," %%A IN (%_InputFile%) DO (
  SET _var1=%%A
  SET "RH="
  SET "SH="
  CALL :process
  if DEFINED RH echo %%~B
  if DEFINED SH echo %%~D
 )
)>u:\youroutputfilename

TYPE u:\youroutputfilename
del u:\youroutputfilename
echo========Second way

SETLOCAL ENABLEDELAYEDEXPANSION 
(
FOR /F "tokens=1-18* delims=," %%A IN (%_InputFile%) DO (
  SET _var1=%%A
  IF "!_var1:~-4!"==""RH"" echo %%~B
  IF "!_var1:~-4!"==""SH"" echo %%~D
 )
)>u:\youroutputfilename

TYPE u:\youroutputfilename
del u:\youroutputfilename
echo========Third way
ENDLOCAL

GOTO :EOF

:process
IF "%_var1:~-4%"==""RH"" SET RH=Y
IF "%_var1:~-4%"==""SH"" SET SH=Y
GOTO :EOF