some new commands; lfs wip

assets/disk0/tvdos/bin/lfs.js

@@ -0,0 +1,21 @@
+function printUsage() {
+    println(`Collects files under a directory into a single archive.
+Usage: lfs [-c/-x/-t] dest.lfs path\\to\\source
+To collect a directory into myarchive.lfs:
+       lfs -c myarchive.lfs path\\to\\directory
+To extract an archive to path\\to\\my\\files:
+       lfs -x myarchive.lfs \\path\\to\\my\\files
+To list the collected files:
+       lfs -t`)
+}
+
+const option = exec_args[1]
+const lfsPath = exec_args[2]
+const dirPath = exec_args[3]
+
+
+if (option === undefined || lfsPath === undefined || option.toUpperCase() != "-T" && dirPath === undefined) {
+    printUsage()
+    return 0
+}
+