where can I find scripts?

in the bash script naming 'prepare-domain-adapt.sh', where can I fine the HOME？

HOME=$2
if [ -z $HOME ]
then
  echo "HOME var is empty, please set it"
  exit 1
fi
SCRIPTS=$HOME/mosesdecoder/scripts
TOKENIZER=$SCRIPTS/tokenizer/tokenizer.perl
CLEAN=$SCRIPTS/training/clean-corpus-n.perl
NORM_PUNC=$SCRIPTS/tokenizer/normalize-punctuation.perl
REM_NON_PRINT_CHAR=$SCRIPTS/tokenizer/remove-non-printing-char.perl
FASTBPE=$HOME/fastBPE
BPECODES=/media/hdd1/pam/mt/models/wmt19.de-en/bpecodes
VOCAB=/media/hdd1/pam/mt/models/wmt19.de-en/dict.en.txt

thank you!

deep-spin / efficient_kNN_MT

where can I find scripts? #2