man pages section 4: File Formats
    
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 package characteristics file, — pkginfo ( Index Term Link )
 
 package contents description file, — pkgmap ( Index Term Link )
 
 package information file — prototype ( Index Term Link )
 
 package installation order file, — order ( Index Term Link )
 
 package table of contents description file, — packagetoc ( Index Term Link )
 
 .packagetoc — listing of software packages on product distribution media ( Index Term Link )
 
 packing rules file for cachefs and filesync — packingrules ( Index Term Link ) ( Index Term Link )
 
 packingrules — packing rules file for cachefs and filesync ( Index Term Link ) ( Index Term Link )
 
 pam.conf — configuration file for pluggable authentication modules ( Index Term Link )
 
 passwd — password file ( Index Term Link )
 
 passwords, access-restricted shadow system file — shadow ( Index Term Link )
 
 path_to_inst — device instance number file ( Index Term Link )
 
 pathalias — alias file for FACE ( Index Term Link )
 
 PCI devices, driver class — pci ( Index Term Link )
 
 pci — drivers for PCI devices ( Index Term Link )
 
 pcmcia — PCMCIA nexus driver ( Index Term Link )
 
 PCMCIA nexus driver — pcmcia ( Index Term Link )
 
 per-user auditing data file — audit_user ( Index Term Link )
 
 phones — remote host phone numbers ( Index Term Link )
 
 pkginfo — software package characteristics file ( Index Term Link )
 
 pkgmap — listing of software package contents ( Index Term Link )
 
 platform — directory of files specifying supported platforms ( Index Term Link )
 
 plot — graphics interface files ( Index Term Link )
 
 policy.conf — configuration file for security policy ( Index Term Link )
 
 power.conf — Power Management configuration file ( Index Term Link )
 
 Power Management configuration file — power.conf ( Index Term Link )
 
 pre-shared keys file for IKE — ike.preshared ( Index Term Link )
 
 .pref — user-preference variables files for AT&T FACE ( Index Term Link )
 
 prime hours, accounting system — holidays ( Index Term Link )
 
 printers.conf — printing configuration database ( Index Term Link )
 
 printers — printer alias database ( Index Term Link )
 
 proc — /proc, the process file system ( Index Term Link )
 
 proc — process file system ( Index Term Link )
 
 proc — /proc, the process file system
  PCAGENT ( Index Term Link )
  PCCFAULT ( Index Term Link )
  PCCSIG ( Index Term Link )
  PCKILL ( Index Term Link )
  PCNICE ( Index Term Link )
  PCREAD PCWRITE ( Index Term Link )
  PCRUN ( Index Term Link )
  PCSASRS ( Index Term Link )
  PCSCRED ( Index Term Link )
  PCSENTRY PCSEXIT ( Index Term Link )
  PCSET PCUNSET ( Index Term Link )
  PCSFAULT ( Index Term Link )
  PCSFPREG ( Index Term Link )
  PCSHOLD ( Index Term Link )
  PCSREG ( Index Term Link )
  PCSSIG ( Index Term Link )
  PCSTOP PCDSTOP PCWSTOP PCTWSTOP ( Index Term Link )
  PCSTRACE ( Index Term Link )
  PCSVADDR ( Index Term Link )
  PCSXREG ( Index Term Link )
  PCUNKILL ( Index Term Link )
  PCWATCH ( Index Term Link )
 
 /proc, the process file system — proc ( Index Term Link )
 
 process file system — proc ( Index Term Link )
 
 process scheduler (or dispatcher), real-time, parameters — rt_dptbl ( Index Term Link )
 
 process scheduler (or dispatcher), time-sharing, parameters — ts_dptbl ( Index Term Link )
 
 processes, core image of a terminated process file — core ( Index Term Link )
 
 profile — setting up an environment for user at login time ( Index Term Link )
 
 project — project file ( Index Term Link )
 
 project file — project ( Index Term Link )
 
 project identification file — issue ( Index Term Link )
 
 protocols — names of known protocols in Internet ( Index Term Link )
 
 prototype — package information file ( Index Term Link )
 
 pseudo devices ( Index Term Link )
 
 pseudo — drivers for pseudo devices ( Index Term Link )
 
 publickey — publickey database for secure RPC ( Index Term Link )