change README.md

README.md

@@ -24,15 +24,6 @@ curl -fsSL https://git.ccc-rheintal.ch/spacefreak/pbc/raw/branch/master/install.
 This installs the newest tagged version to `/usr/local/bin/pbc`, installs the
 dependencies, and puts an example config at `/etc/pbc/config.example`.
 
-From a clone:
-
-```bash
-sudo ./pbc install     # install the dependencies, then copy pbc where you want it
-```
-
-`install.sh` always fetches the newest tagged release from the repository, so running it
-from a clone does not install your local copy.
-
 ### Updating
 
 Run the same command again to update `pbc` itself:
@@ -198,24 +189,44 @@ filesystem and mark what you want back:
 ```
 pxar:/ > cd etc
 pxar:/etc > ls
-pxar:/etc > select nginx
+pxar:/etc > select hosts
-pxar:/etc > cd ../home/user
+pxar:/etc > find etc/nginx/** --select
-pxar:/home/user > select .ssh/config
+pxar:/etc > list-selected
-pxar:/home/user > list-selected
+pxar:/etc > restore-selected /mnt/restore
-pxar:/home/user > restore-selected /mnt/restore
+pxar:/etc > exit
-pxar:/home/user > exit
 ```
 
-- `ls`, `cd`, `pwd`, `stat`, `find` — browse the archive
+- `ls`, `cd`, `pwd`, `stat` — browse the archive
-- `select` / `deselect` — mark a file or directory for restore
+- `select <path>` — mark a single file, relative to the current directory
+- `find <pattern> --select` — mark everything matching a glob
+- `deselect <path>` / `clear-selected` — drop one entry or all of them
 - `list-selected` — show what is currently marked
 - `restore-selected <target>` — restore only the marked entries
-- `restore <target>` — restore the whole archive
+- `restore <target> [pattern]` — restore the current directory and everything below it
 - `help` — list all available shell commands
 - `exit` — leave the shell
 
-Create the target directory beforehand — `pbc` does not create it. It has to be writable
+#### Selecting a directory and everything beneath it
-for the user that runs `pbc`, and should be empty.
+
+`select` marks exactly the entry you give it and nothing else. Marking a directory
+therefore restores an empty directory — its contents are *not* included. Use a glob with
+`find --select` instead:
+
+```
+pxar:/ > find etc/nginx/** --select
+pxar:/ > select etc/nginx
+pxar:/ > restore-selected /mnt/restore
+```
+
+The `find` line picks up everything below `etc/nginx`; the `select` line adds the
+directory itself, so its own permissions and ownership are restored as well.
+
+Note that `find` patterns are always matched against paths relative to the archive root,
+no matter which directory you are in, and that `find` scans the whole archive — expect it
+to take a while on large backups.
+
+The target path must not exist yet; the restore creates it. Its parent directory has to be
+writable for the user that runs `pbc`.
 
 ### Everything, or with normal tools