Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

roles/web-app-nextcloud/docs/Users.md

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+# User Administration 
+
+### List Users
+```bash
+docker compose exec -it -u www-data application php occ user:list
+```
+
+### Get User Info
+```bash
+docker compose exec -u www-data application php occ user:info {{username}}
+```
+
+### Sync Users
+```bash
+docker compose exec -it -u www-data application php occ user:sync
+```
+
+### Create user via CLI
+```bash
+docker compose exec -it -u www-data application php occ user:add {{username}}
+```
+
+### Make user admin via cli
+```bash
+docker compose exec -it -u www-data application php occ group:adduser admin {{username}}
+```
+
+### Delete user via CLI
+```bash
+docker compose exec -it -u www-data application php occ user:delete {{username}}
+```
+
+### Delete all User (if no ldap is used)
+```bash 
+for user in $(docker compose exec -u www-data application php occ user:list --output=json | jq -r 'keys[]'); do
+    docker compose exec -u www-data application php occ user:delete "$user"
+done
+```
+
+### Identify users which exist still in nextcloud but not in LDAP anymore
+```bash 
+occ ldap:show-remnants
+```