Synchroniser deux répertoires locaux dans une machine Linux

// Install rsync 
sudo apt-get install rsync
// Run this everytime the source directory here: dir1 is changed
rsync -av --progress --delete dir1/ dir2

// for instance:
sudo rsync -av --progress --delete frontend/build/ /var/www/html


// FYI Unison seems to be another popular alternative 
"https://www.cis.upenn.edu/~bcpierce/unison/"
Yucky Yak