Rename subtitles with .nl suffix

gistfile1.bat

# First test if this is what you want it to do
find . -type f -name "*.srt" | awk '{print("mv \""$0"\" \""$0"\"")}' | sed 's/\.srt/\.nl\.srt/2'

# Second if everything seems wright, do it!
#find . -type f -name "*.srt" | awk '{print("mv \""$0"\" \""$0"\"")}' | sed 's/\.srt/\.nl\.srt/2' | /bin/sh

# Exclude already correct subtitles
#find . -type f -name "*.srt" -not -name "*.nl.srt" | awk '{print("mv \""$0"\" \""$0"\"")}' | sed 's/\.srt/\.nl\.srt/2'