un-nest curl

curl-8.15.0/docs/cmdline-opts/skip-existing.md

@@ -0,0 +1,22 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Long: skip-existing
+Help: Skip download if local file already exists
+Category: curl output
+Added: 8.10.0
+Multi: boolean
+See-also:
+  - output
+  - remote-name
+  - no-clobber
+Example:
+  - --skip-existing --output local/dir/file $URL
+---
+
+# `--skip-existing`
+
+If there is a local file present when a download is requested, the operation
+is skipped. Note that curl cannot know if the local file was previously
+downloaded fine, or if it is incomplete etc, it just knows if there is a
+filename present in the file system or not and it skips the transfer if it is.