for /F "usebackq delims=" %%A in (`cleartool ls  -rec ^| find /V "Rule:" ^| find /V "hijacked" ^| find /V "eclipsed" ^| find /V "-->"`) do (
    if "%%~xA"==".cs"  echo %%A
)

for /F "usebackq delims=" %%A in (`cleartool ls  -rec ^| find /V "Rule:" ^| find /V "hijacked" ^| find /V "eclipsed" ^| find /V "-->"`) do (
if "%%~xA"==".cs" if NOT "%%A"=="*obj*" echo %%A
)

echo %%A | findstr /C:"obj"
set obj_errorlevel=%errorlevel%

if "%%~xA"==".cs" if "%obj_errorlevel%"=="1" echo %%A

for /F "usebackq delims=" %%A in (`cleartool ls  -rec ^| find /V "Rule:" ^| find /V "hijacked" ^| find /V "eclipsed" ^| find /V "-->" ^| find /V "obj"`)

for    xxxxxxx   (
   if first-condition (
       if second-condition (
         statement(s)
       )
   )
)

for /F "usebackq delims=" %%A in (`cleartool ls  -rec ^| find /V "Rule:" ^| find /V "hijacked" ^| find /V "eclipsed" ^| find /V "-->"`) do (
  if "%%~xA"==".cs" echo %%A | findstr /C:"obj" 1>nul & if errorlevel 1 echo %%A
)

(echo %%A | findstr /R .*obj.*)>NUL ||
  if "%%~xA"==".cs" echo %%A

(echo %%A|findstr /R /V ".*obj.*")|findstr /R /C:".cs $"

@echo off
set _myvar=thishasobjin the string
echo Original: %_myvar%
::replace the string obj in _myvar
set _myvar=%_myvar:obj=%
::replace any double back-slashes in _myvar
set _myvar=%_myvar:\=%
echo Withou obj: %_myvar%

@echo off

setlocal EnableDelayedExpansion


set /p a= enter letter to change:
set /p b= enter letter to change to:
set /p file=<%1

for /f %%c in ("!file:~!") do (
    set "code=!file:%a%=%b%!"
    echo !code!>myfile.cs
)