Update cheatsheets

tldr/linux/unix2mac

@@ -7,6 +7,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 > Change Unix-style line endings to macOS-style.
 > Replaces LF with CR.
+> See also `unix2dos`, `dos2unix`, and `mac2unix`.
 > More information: <https://waterlan.home.xs4all.nl/dos2unix.html>.
 
 - Change the line endings of a file:
@@ -15,4 +16,12 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Create a copy with macOS-style line endings:
 
-`unix2mac -n {{path/to/unix_file}} {{path/to/mac_file}}`
+`unix2mac -n {{path/to/file}} {{path/to/new_file}}`
+
+- Display file information:
+
+`unix2mac -i {{path/to/file}}`
+
+- Keep/add/remove Byte Order Mark:
+
+`unix2mac --{{keep-bom|add-bom|remove-bom}} {{path/to/file}}`