Pipefs makes the name space under dir visible at mountpoint. The -a (or -b) option causes the name space to be placed after (or before) the current contents of mountpoint; the default is to replace the current contents. The -c option permits creation under mountpoint.
Data that is read from (or written to) files made visible under mountpoint is filtered through command, specified using the -r (or -w) option. At least one command must be specified; pipefs will use cat(1) as the other command.
(pipefs -c -r 'crypt -d -k secret' -w 'crypt -k secret' /encrypted/dir /n/decrypted)
|PIPEFS(4)||Rev: Fri Jun 15 21:22:04 GMT 2007|