Save mkvmerge output in log file

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1

Hi

I would like to know if there is a way to save mkvmerge output (=what appear on the windows terminal) in a .txt file.

Aternatively in do like this in 2 steps:
command>txt.txt
type “txt.txt”

But i don’t really like it because i would like to compile on the window terminal and save at the same time. I know some soft cli offer this possibility

2

Welcome!

If you use a Unix-like shell such as bash or zsh you can use the tee command:

mkvmerge <arguments> | tee output.txt

On Windows there’s a built-in equivalent in the PowerShell called Tee-Object. You call it like this:

mkvmerge <arguments> | Tee-Object -FilePath output.txt
3

Hello,

Thanks for your answer. I have maybe a dumb but i have that error message when i tried

when i use this the windows terminal just crash

mkvmerge <arguments> | Tee-Object -FilePath output.txt

So i have tried this

mkvmerge <arguments> ^| Tee-Object -FilePath output.txt

And i have this error message
mkvmerge v78.0 (‘Running’) 64-bit
Erreur : Le fichier « | » ne peut pas être ouvert en lecture : open file error.

maybe there is something i do wrongly, i hope you can help me again

thanks in advance

4

I have no idea why your console crashed; sorry.

Using the syntax … ^| … is definitely wrong. The ^ resets the special meaning of the pipe operator | and passes a verbatim | character to mkvmerge as a command line parameter along with all the following words. mkvmerge then thinks | is a file name & doesn’t find a file with that name.

Put differently, what I wrote mkvmerge <arguments> | Tee-Object -FilePath output.txt is interpreted by PowerShell as:

Start two programs. The first one is mkvmerge with command line arguments <arguments>. The second one is Tee-Object (a PowerShell scriptlet) with command line arguments -FilePath output.txt. Take the output of the first program and hand it over to the second program.

Whereas what you wrote, mkvmerge <arguments> ^| Tee-Object -FilePath output.txt, is interpreted as:

Start only one program, mkvmerge, with command line arguments <arguments> | Tee-Object -FilePath output.txt. Take its output & print it on the console.

5

thanks for your answer.

I have performed more test and i have realized it is not the | which creates the crash but i don’t use correctly the Tee-Object

so let’s write a complet command line and maybe you could tell me what is wrong
I will take the most simple command with mkvmerge for the example

“C:\Program Files\MKVToolNix\mkvmerge.exe” -o “D:\output.mkv” “D:\input.mkv” | Tee-Object -FilePath “D:\output.txt`”

“C:\Program Files\MKVToolNix\mkvmerge.exe” -o “D:\output.mkv” “D:\input.mkv” | Tee-Object -"D:" output.txt

i have tried those 2 commands and it doesn’t work, the console crash

but if i try
echo 1 | echo 2
the console display 2 without crashing

thanks in advance for your help

6

Sorry, but I really cannot help you with the console crashing. The first command you’ve shown looks good to me; it works on my end with slightly altered paths:

Z:\home\mosu\prog\video\mingw\links\cross-x86_64-w64-mingw32\mkvmerge.exe -o d:\mkv\out.mkv D:\mkv\v.avi  | Tee-Object -FilePath D:\mkv\out.txt

Remember: you must run this in PowerShell, not in plain old cmd.exe.

7

oh that is the thing, i tried it in cmd.exe.
How do i run in powershell ?

i have create a .bat with thousands of lines and the mkvmerge command is one of them. can i safely run a .bat through powershell or will it make a lot of unexpected problem ?
If that is not possible i will forget this idea to get the output both on console and .txt because my .txt is a hundreads of hours already

8

Sorry, but I’m not doing general Windows support here. Google for how to use the PowerShell, learn about PowerShell scripts (those with .ps1 as the extension). Or look into finding a Windows port of the Unix tool tee if you want to continue using cmd.exe; it does pretty much similar things as the PowerShell-built-in function Tee-Object.

9

No problem, you already help me a lot.

Thanks for everything your are doing.