Fix: install script fails on alpine linux due to the use of `head` (#5520)

diff --git a/install-paperless-ngx.sh b/install-paperless-ngx.sh
index f019d9c482cc6a89bb06529cf3865c2964fe5fdc..c53fcb7223578f86c35a5ba5dd38c281cebb1577 100755 (executable)
--- a/install-paperless-ngx.sh
+++ b/install-paperless-ngx.sh
@@ -315,7 +315,7 @@ fi
 wget "https://raw.githubusercontent.com/paperless-ngx/paperless-ngx/main/docker/compose/docker-compose.$DOCKER_COMPOSE_VERSION.yml" -O docker-compose.yml
 wget "https://raw.githubusercontent.com/paperless-ngx/paperless-ngx/main/docker/compose/.env" -O .env
 
-SECRET_KEY=$(LC_ALL=C tr -dc 'a-zA-Z0-9!"#$%&'\''()*+,-./:;<=>?@[\]^_`{|}~' < /dev/urandom | head --bytes 64)
+SECRET_KEY=$(LC_ALL=C tr -dc 'a-zA-Z0-9!"#$%&'\''()*+,-./:;<=>?@[\]^_`{|}~' < /dev/urandom | dd bs=1 count=64 2>/dev/null)
 
 
 DEFAULT_LANGUAGES=("deu eng fra ita spa")