Any way to batch join .srt subtitle files in multiple parts?

[seanmcnally]

I’ve got a load of files that look like this
subpart1.srt
subpart2.srt

I’m trying to write a batch script that will take the two and merge them, the way that SubtitleEdit can do using the GUI, without changing any of the times. Yes, I know that sounds silly, but in my particular use case, subpart2.srt is already delayed to account for where subpart1.srt ends, and is blank at the beginning.

Can anyone point me towards a good subtitle editor that can join SRTs via command line interface? Preferably on windows. Thanks.

[mrbass]

not sure but command line tools look at Video Updater Tools (2017) but possibly has what you're looking for

https://www.videohelp.com/software/Video-Updater-Tools

[seanmcnally]

Thanks mrbass, I don't believe that software has what I'm looking for, but after a day of research, I've solved this problem myself.

Subedit is a unix-based software that can do what I need, and I figured out the process for getting this to work on Windows 10. Obviously, this will be a lot easier if you're using Linux, but here are the Windows instructions:

Step 1 Open powershell, type wsl --install
Step 2 Go to aka.ms/wslstore, and install Ubuntu from the Microsoft Store
Step 3 Press Launch from the Microsoft Store, let it install the rest of the way.
Step 4: Ubuntu Command Line will prompt you to create a username and password. Note: when making a username, no capital letters are allowed.
Step 5 Still inside Ubuntu Command Line, type sudo apt-get install dos2unix, then type your password
Step 6 Type sudo apt-get install uchardet
Step 7 Close the Ubuntu Command Line Window
Step 8 Go to https://github.com/helixarch/subedit, press the green Code button then Download Zip
Step 9 Extract the zip
Step 10 Navigate inside subedit-master folder with all the bash files (you should see LICENSE, README.md, etc). Shift+Right Click inside that folder, click Open Powershell Window Here
Step 11 Type bash subedit and you should see "Try subedit -h for more information." If you see this, everything you've done so far has worked successfully.
Step 12 Now, copy the extensionless "subedit" file to a directory with all your srt files labeled "moviea_part1.srt" "moviea_part2.srt"
Step 13 Basically, you're going to now create a .bat file that will utilize the subedit -j command to join the two together.
Step 14 Right click, create a new text document, rename to process.bat or something similar (google enabling extensions for known files if you don't see the .txt extension)
Step 15 Edit the file, paste this code into there

@echo off
setlocal enabledelayedexpansion
mkdir originals
mkdir output
For %%A in (*.srt) DO (
	echo Processing subs for %%A
	for /F "tokens=1,* delims=_" %%G in ("%%~A") DO (
		set moviename=%%G
		)
	bash subedit -i !moviename!_part1.srt -j !moviename!_part2.srt
	move !moviename!_part1.srt originals
	move !moviename!_part2.srt originals
	move !moviename!_part1_join.srt output
)
pause

Step 16 Run the code, and you're done!

NOTE 1: This script expects SRT files that have names ending with _part1.srt and _part2.srt.
Anything before that must not include any underscores. If your file names have underscores, change the character under "delims" to something like a period, and instead name your file .part1.srt and .part2.srt.

NOTE 2: The originals will be moved to a new folder called "originals", and the newly joined files will be moved to a folder called "output".

NOTE 3: This only works with two-part files. If you have a third part, grab the "joined" file from the output folder, put it back in the working directory, rename it to moviename_part1.srt, and then rename your third part to moviename_part2.srt.

[mrbass]

wow great find...bookmarked it..I use linux so shouldn't be too hard to figure out...thx for the info and find seanmcnally

[lansing]

thanks for this but didn't work

A subdirectory or file originals already exists.
A subdirectory or file output already exists.
Processing subs for moviea_part1.srt
subedit: line 787: moviea_part2.srt: Permission denied
sed: preserving permissions for ‘./sedSbDLKD’: Operation not permitted
sed: cannot rename ./sedSbDLKD: Permission denied
Warning: "moviea_part2.srt.bak" is not readable
Error: "moviea_part2.srt" is not a valid srt file
        1 file(s) moved.
        1 file(s) moved.
The system cannot find the file specified.
Press any key to continue . . .