xz*: update pages (#10192)

* xz*: update pages

* xz: make placeholders consistent

pages/common/xz.md

@@ -1,31 +1,31 @@
 # xz
 
-> Compress or decompress .xz and .lzma files.
-> More information: <https://tukaani.org/xz/format.html>.
+> Compress or decompress `.xz` and `.lzma` files.
+> More information: <https://manned.org/xz>.
 
-- Compress a file to the xz file format:
+- Compress a file using xz:
 
 `xz {{path/to/file}}`
 
-- Decompress a xz file:
+- Decompress an xz file:
 
-`xz -d {{file.xz}}`
+`xz --decompress {{path/to/file.xz}}`
 
-- Compress a file to the LZMA file format:
+- Compress a file using lzma:
 
 `xz --format={{lzma}} {{path/to/file}}`
 
-- Decompress an LZMA file:
+- Decompress an lzma file:
 
-`xz -d --format={{lzma}} {{file.lzma}}`
+`xz --decompress --format={{lzma}} {{path/to/file.lzma}}`
 
-- Decompress a file and write to `stdout`:
+- Decompress a file and write to `stdout` (implies `--keep`):
 
-`xz -dc {{file.xz}}`
+`xz --decompress --stdout {{path/to/file.xz}}`
 
 - Compress a file, but don't delete the original:
 
-`xz -k {{path/to/file}}`
+`xz --keep {{path/to/file}}`
 
 - Compress a file using the fastest compression: