[FFmpeg-user] It appears that FFmpeg is slipping into command mode

[Mark Filipak]

On 27/07/2025 07.00, Reino Wijnsma via ffmpeg-user wrote:
> Hello Mark,
> 
> On 2025-07-27T01:17:51+0200, Mark Filipak <markfilipak.imdb at gmail.com> 
> wrote:
>> PREFACE: It appears that FFmpeg is slipping into command mode, taking
>> the next couple letters from stdin, and interpreting them. That screws
>> up the remaining script of course.
> You do realize this is totally off-topic for this mailinglist?
> But fine, I'll bite.

The point is this:

While

ffmpeg -y -safe 0 -i "%JOB%CONCATa0.txt" "%_DELAYEDa0_%"

executes, it's apparently slipping into command mode and taking in the
next line

echo ffconcat version 1.0>"%JOB%CONCATa1.txt"

and complaining

Enter command: <target>|all <time>|-1 <command>[ <argument>]
Parse error, at least 3 arguments were expected, only 1 given in string
'ho ffconcat version 1.0>"%_JOB_%CONCATa1.txt"'

That seems a little odd to me.

--Mark.