Select the file in Finder and press ⌥⌘C. The full path is copied, ready to paste.
Copy as Pathname
- Select the file or folder in Finder.
- Press ⌥⌘C. Or right-click it, hold ⌥ and choose Copy "name" as Pathname.
- Paste the path wherever you need it.
Show the path bar
- In a Finder window, press ⌥⌘P. The path to the selected item appears along the bottom of the window.
Drag into Terminal
- Drag the file into a Terminal window. Its full path is typed for you, with spaces escaped.
With dragand
With dragand's clipboard history on, copied paths are kept too, so the path you copied this morning is one search away.