Refactor: Use heredoc when creating env files and creds/other (#15469)

* Use heredoc

* Fixes

ct/patchmon.sh

@@ -58,12 +58,11 @@ function update_script() {
         -e 's/^NODE_/APP_/' \
         -e '/^SERVER_*/d' \
         -e '/^# API*/,+2d' /opt/patchmon/.env
-      {
-        echo ""
-        echo "SESSION_SECRET=$(openssl rand -hex 64)"
-        echo "AI_ENCRYPTION_KEY=$(openssl rand -hex 64)"
-        echo "AGENT_BINARIES_DIR=/opt/patchmon/agents"
-      } >>/opt/patchmon/.env
+      cat <<EOF >/opt/patchmon/.env
+SESSION_SECRET=$(openssl rand -hex 64)
+AI_ENCRYPTION_KEY=$(openssl rand -hex 64)
+AGENT_BINARIES_DIR=/opt/patchmon/agents
+EOF
       sed -i -e '\|Directory|s|/backend||' \
         -e 's|^ExecStart=.*|ExecStart=/opt/patchmon/patchmon-server|' \
         -e 's|^Environment=NODE_.*|EnvironmentFile=/opt/patchmon/.env|' \

ct/wizarr.sh

@@ -57,11 +57,11 @@ function update_script() {
       sed -i 's/--workers 4//' /opt/wizarr/start.sh
     fi
     if ! grep -qE 'FLASK|WORKERS|VERSION' /opt/wizarr/.env; then
-      {
-        echo "FLASK_ENV=production"
-        echo "GUNICORN_WORKERS=4"
-        echo "APP_VERSION=$(sed 's/^20/v&/' ~/.wizarr)"
-      } >>/opt/wizarr/.env
+      cat <<EOF >/opt/wizarr/.env
+FLASK_ENV=production
+GUNICORN_WORKERS=4
+APP_VERSION=$(sed 's/^20/v&/' ~/.wizarr)
+EOF
     else
       sed -i "s/_VERSION=v.*$/_VERSION=v$(cat ~/.wizarr)/" /opt/wizarr/.env
     fi