The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.4/static/continuous-archiving.html
Description:
Most examples in "25.3. Continuous Archiving and Point-in-Time Recovery
(PITR)" use Unix commands and paths, but all variables are written as
Windows batch file variables (Windows "%var" / Unix "$var").
For example, the first one on the page has
archive_command = 'test ! -f /mnt/server/archivedir/%f && cp %p
/mnt/server/archivedir/%f' # Unix
Instead of
archive_command = 'test ! -f /mnt/server/archivedir/$f && cp $p
/mnt/server/archivedir/$f' # Unix
or possibly
archive_command = '[ -f /mnt/server/archivedir/$f ] || cp $p
/mnt/server/archivedir/$f' # Unix
https://www.postgresql.org/docs/current/static/continuous-archiving.html