Smudge and Clean filters

[RiaanP-ZA]

Smudge work, Clean is ignored.

In the attributes file

C:\Users\Riaan\.config\git\attributes

*.cbl filter=Promote

git config --global filter.Promote.smudge "/C/Users/Riaan/.config/git/Promote.smudge"
git config --global filter.Promote.clean "/C/Users/Riaan/.config/git/Promote.clean"

Promote.smudge

#! /bin/sh -f
sed \
-e 's|/u/files1/|U:\\files1\\|' \
-e 's|"SYSTEM"|"MFSYSTEM"|' \
$1

Promote.clean

#! /bin/sh -f
sed \
-e 's|U:\\files1\\|/u/files1/|' \
-e 's|"MFSYSTEM"|"SYSTEM"|' \
$1

(there are more similar lines excluded for simplicity)

Purpose of both filters are mostly changing linux folder structures into windows format "/u/" into "U:\"

Cloning a repository and the smudge filter does execute. Master repository is on linux and my created repository got all the filenames in the windows format. 

Promoting programs back to linux and the trigger is just not executed at all. What else must be set.

Note, I'm running git bash on a Windows 10 PC.

[RiaanP-ZA · Accepted solution]

Found it eventually.

the paths in the config file is a mix between Windows and Linux format

Must use Windows c:
but Linux forward slashes 

[filter "Promote"]
clean = "C:/Users/Riaan/.config/git/Promote.clean"
smudge = "C:/Users/Riaan/.config/git/Promote.smudge"