P

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P2P
Pack archive file using tar
Package [See Software, installing.]
Packet
     broadcast
     filtering [See also iptables.]
     network 2nd
     sniffer
     unicast
Page break
Pager 2nd 3rd 4th
Paging 2nd
PAM 2nd
     features
     more information
     security, login
     stack
pam.conf file
pam.d directory 2nd 3rd 4th
Panel
     desktop
     Icon menu
     menu, KDE
     Navigation, Konqueror
Parameter
     expansion
     positional
     shell
     special
     substitution
Parent
     directory 2nd
     of all processes
     process 2nd 3rd
Parentheses
     grouping commands
     shell functions
Parse 2nd
parted utility
Partition
     /boot 2nd 3rd 4th
     /home
     /usr
     /var
     disk 2nd
     Disk Druid
     LVM
     parted utility
     planning
     primary and secondary
     RAID 2nd
     sizes
Partner net
PASC
Passive FTP [See FTP, passive.]
Passive hub 2nd
Passphrase
passwd database 2nd 3rd 4th
passwd file 2nd 3rd 4th 5th 6th 7th 8th
passwd utility 2nd 3rd 4th
Password
     breaking
     change 2nd
     criteria
     group
     hashed
     one-time
     Samba
     security
     Superuser
PASV FTP [See FTP, passive.]
PATH variable
     inherited
     login
     Superuser 2nd
     usage
Path, search
Pathname
     absolute 2nd 3rd
     completion
     defined
     element
     expansion 2nd 3rd 4th
     last element of
     relative 2nd 3rd 4th
     using
     ~ (tilde) in a
pdf filename extension
Peer, BitTorrent
Period, leading in a filename
Peripheral device [See Device.]
Permission
     access
         change using chmod
         control of
         directory
         display using ls
         execute
         read
         types of
     execute
     file access 2nd
     read
     setgid
     setuid
     setuid, set using chmod
Persistent
PGP encryption
pgpkey file [See .pgpkey file.]
Philosophy, UNIX 2nd
Phish
php filename extension
Physical
     device
     security
    volume [See LVM.]
PID 2nd
     $! variable, and
     $$ variable
     background process and 2nd
     fg
     number 1 2nd
     temporary file, use in name of
pidof utility
pinfo utility
ping utility 2nd 3rd 4th
ping6 utility
Pipe
     command separator
     defined
     end of line, at
     filter 2nd
     introduction
     named 2nd 3rd 4th
     noclobber and
     standard error, and
     symbol
     syntax exception
Pipeline [See Pipe.]
pirut utility
Pixel
Plaintext 2nd
plan file [See .plan file.]
Pluggable Authentication Module [See PAM.]
Plus sign
Point to give focus
Point-to-point link 2nd 3rd
Point-to-Point Protocol [See PPP protocol.]
Pointer to a file
POP, email
pop3-login daemon
popd builtin
Port 2nd
     forwarding
     forwarding, OpenSSH
     privileged 2nd
Portability 2nd
portmap daemon 2nd 3rd
portmap utility 2nd
Portmapper
Positional parameter 2nd
POSIX
     about
     standards
Postdecrement operator
Postfix
postfix daemon
Postincrement operator
Postmaster
PostScript Printer Definition [See PPD files.]
Postscript, brace expansion
Power management 2nd
Power, turn off
poweroff utility
ppd filename extension
PPD files
PPID [See Parent, process.]
PPP protocol 2nd 3rd
pppd daemon
praliases utility
Preamble, brace expansion
Preboot Execution Environment [See PXE.]
Predecrement operator
Preincrement operator
Preprocessor directive
     #define 2nd
     #include
     defined
     macro 2nd
     symbolic constant 2nd
Prerequisites
     Apache
     automount
     BitTorrent
     CUPS
     DHCP client
     DHCP server
     DNS
     FTP
     iptables
     make
     NFS 2nd
     NIS client
     NIS server
     Samba
     sendmail
     vsftpd
Pretty Good Privacy [See PGP encryption.]
Primary
     buffer
     master server, DNS
     partition
Print
     file
     IPP protocol
     queue
Printable character
printcap file
Printer
     capability database
     configuring with CUPS
     control characters
     daemon 2nd
     lpr and
     page break
     sharing
     skip to top of page
     top of form
     using
Printing
     CUPS
     manager, KDE
     quotas
     system, about
     UNIX traditional
     Windows, from
     Windows, to
printmgr utility
Privacy Enhanced Mail [See Encryption, PEM.]
Private address space 2nd
Private key
Privilege, least 2nd
Privileged port 2nd 3rd
Probe devices
Problems
     hung program
     login
proc filesystem 2nd 3rd 4th 5th
Procedural language
Procedure
Process
     background 2nd 3rd
     child 2nd 3rd
     defined 2nd
     die 2nd
     first
     foreground
     fork
    ID [See PID.]
     init
     kill
     parent 2nd
     parent of all
     parent-child relationship
     search for using ps and grep
     sleep 2nd
    spawn [See Fork.]
     spontaneous
     start
     structure
     substitution
     wake up 2nd 3rd
Processing a command line
procmail daemon
procmail utility
profile file 2nd 3rd 4th
Program [See also Builtin; Utility.]
     badtabs.c
     keeping current
     running a
     stop
     structures
     tabs.c
     terminate
     X Window System
Programmer
     applications
     systems
Programming tools
Project Athena
project file [See .project file.]
PROM
Prompt
     #
     $
     %
     bash
     job control and
     login 2nd
     PS2
     PS3
     representation
     root
     secondary
     shell 2nd
     Superuser
Proprietary operating system
Protocol
     connection-oriented 2nd
     connectionless
     datagram-oriented
     defined
     DHCP
     HTTP
     HTTPS 2nd
     ICMP
     IPP
     IPSec 2nd
     ISO model
     network
     NNTP
     Point-to-Point
     PPP 2nd
     SLIP
     TCP/IP
     TELNET
     UDP
protocols file 2nd
Proxy
     defined
     gateway 2nd
     server 2nd
ps filename extension
ps utility 2nd 3rd 4th 5th
PS1 variable 2nd
PS2 variable 2nd
PS3 variable
PS4 variable
Pseudoterminal
pstree utility
pts file
pub directory
Public key encryption
Public key encryption, OpenSSH
Public License, GNU [See GNU, General Public License.]
public_html directory
pushd builtin
putchar C macro
pwd builtin 2nd 3rd
pwd utility 2nd
PWD variable
PXE
Python