This is an easy to achieve task with using JREPL.BAT written by Dave Benham which is a batch file / JScript hybrid to run a regular expression replace on a file using JScript.
@echo off
if not exist "%~dp0jrepl.bat" (
echo ERROR: JREPL.BAT missing in directory "%~dp0".
echo/
pause
goto :EOF
)
for %%I in ("C:\Temp\*.txt") do call "%~dp0jrepl.bat" "^((?:new)?location000:/.+/).*(\.[^.,]+,)" "$1%%~nI$2" /F "%%I" /O -
This batch file works only on NTFS drives. It can result in an endless running loop on FAT16, FAT32 or ExFAT drives or skipping some text files. For a working solution independent on file system replace the last command line by:
for /F "eol=| delims=" %%I in ('dir "C:\Temp\*.txt" /A-D-H /B /ON 2^>nul') do call "%~dp0jrepl.bat" "^((?:new)?location000:/.+/).*(\.[^.,]+,)" "$1%%~nI$2" /F "C:\Temp\%%I" /O -
The batch file JREPL.BAT must be stored in same directory as the batch file with the code above. For that reason the batch file checks first if JREPL.BAT really exists in directory of the batch file and if this is not the case, outputs an error message, halts script execution to make it possible for a user to read that error message and then exits. See Where does GOTO :EOF return to?
The command FOR searches in specified directory C:\Temp for non hidden files matching the wildcard pattern *.txt and calls for each found text file the batch file JREPL.BAT to replace the file name between last / and first string starting with ., having one or more characters not being a dot or a comma with next character being a , (= file extension and comma) on lines starting case-sensitive with location000:/ or newlocation000:/ by the file name of the current *.txt file without file extension. So a file name in existing file can contain also one or more . in file name before file extension.
The solution working also on FAT drives uses command DIR to get a captured list of *.txt files with just file name and file extension without path and FOR processes this file names list line by line, i.e. file name by file name. So the list of *.txt files to process does not change on running FOR calling JREPL.BAT as it would be the case on using FOR directly to find the *.txt files on FAT drives.
NTFS returns a list of directory entries matching a wildcard pattern sorted alphabetically and so the list of *.txt files does not modify during FOR iterations in this case. But all FAT file systems return the list of directory entries matching a wildcard pattern according to last modification in directory with last modified file at end of the list. So while FOR gets one file name after the other on using for %%I in ("C:\Temp\*.txt") do from file system and processes the file with calling jrepl.bat which modifies the file, the file list changes on FAT drives and next directory entry returned to FOR on its search for *.txt is either the file just modified (= endless loop) or another file after skipping a file which should be also modified because of file list changed since last directory access by FOR.
For understanding the used commands and how they work, open a command prompt window, execute there the following commands, and read entirely all help pages displayed for each command very carefully.
call /? ... explains also %~dp0 ... drive and path of argument 0 being the batch file itself.dir /?echo /?for /?goto /?if /?pause /?jrepl.bat /?
