There are two methods we can clear cache in symfony application:
app/console cache:clear [--env=prod]
&
rm -rf app/cache/*
What is the difference between the two ?
Command app/console cache:clear deletes the cache directory as well as rm but it also runs warmup phase, where it re-creates cache fiels so I doesn't need to be created by the first request that arrives (see no-warmup option).