P

Index

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P2P
Pack archive file using tar
Packet
     broadcast
     defined
     filtering
     network 2nd
     sniffer
     unicast
Page break
Pager 2nd 3rd
PAGER variable 2nd
Paging
PAM
     about
     features
     stack
pam.conf file
pam.d directory 2nd 3rd 4th
Panes
Panther
Parameter
     expansion
     positional 2nd
     shell
     special
     substitution
     vim
Parent
     directory 2nd
     of all processes
     process 2nd 3rd
Parentheses
     grouping commands
     shell functions
Parse 2nd
Partition
Partner net
PASC
Passive FTP
Passive hub
Passphrase
passwd database
passwd file
passwd utility 2nd 3rd 4th
Password
     change 2nd
     criteria
     defined
     Keychain
     security
paste utility
PASV FTP. [See Passive FTP]
PATH variable
     about
     builtin and
     find executables using which
     inherited
     login
     Superuser
     tcsh
     usage
path variable
Path, search
Pathname
     absolute 2nd 3rd 4th
     completion
     defined 2nd
     element
     expansion 2nd 3rd
     last element of
     relative 2nd 3rd 4th
     special
     using
pax utility
pdf filename extension
Performance, system
Period, leading in a filename
Peripheral device. [See Device]
Permission
     access
         change using chmod
         control of
         directory
         display using ls
         execute
         read
         types of
     ACL
     execute
     file access 2nd
     read
     setgid
     setuid
     setuid, set using chmod
Persistent
Philosophy, UNIX 2nd 3rd
Phish, defined
Physical device
PID
     $! variable, and
     $$ variable 2nd
     about
     background process, and 2nd
     defined
     determining using ps
     fg
     kill, using with 2nd
     number 2nd 3rd
     temporary file, use in name of
ping utility 2nd
ping6 utility
Pipe
     command separator
     defined 2nd
     end of line, at
     filter 2nd
     introduction
     named 2nd 3rd 4th
     noclobber and
     standard error, and
     symbol
     syntax exception
Pipeline. [See Pipe]
Pixel
pkg filename extension
Plaintext
plan file. [See .plan]
plist filename extension
Pluggable Authentication Module. [See PAM]
Plus sign
plutil utility 2nd
Point-to-point link 2nd
Pointer to a file
popd builtin 2nd 3rd
Port
     defined
     forwarding
     privileged
Portability
portmap daemon 2nd 3rd
Portmapper
Position-independent code
Positional parameter 2nd 3rd
POSIX 2nd
Postdecrement operator 2nd
postfix daemon
Postincrement operator 2nd
Postscript, brace expansion
PPID. [See Parent; process]
PPP protocol
pr utility
Preamble, brace expansion
Predecrement operator
Preference file. [See Startup file]
Preincrement operator
Preprocessor directive
     #define
     #include
     defined
     macro 2nd
     symbolic constant 2nd
Prerequisites, make
Printable character
printcap file 2nd
printenv builtin
Printer
     capability database
     control characters
     lpr and
     page break
     skip to top of page
     top of form
     using the
PRINTER variable
Printing
    a file. [See Printer; using the]
     CUPS
Private address space
private directory
Privilege, least 2nd
Privileged port 2nd
Problems
     hung program
     login
Procedural language
Procedure
Process
     background 2nd 3rd
     child 2nd 3rd
     defined 2nd 3rd
     die 2nd
     first
     foreground
     fork
    fork. [See Fork]
    ID. [See PID]
     init
     kill
     parent 2nd
     parent of all
     parent-child relationship
     PID, display using ps
     search for using ps and grep
     sleep 2nd
    spawn. [See Fork]
     spontaneous
     start a
     structure
     substitution
     wake up 2nd 3rd
Processing a command line
procmail utility
profile file 2nd 3rd 4th
Program
     badtabs.c
     defined
     keeping current
     stop
     structures
     tabs.c
     terminate
Programmer, applications
Programmer, systems
Programming tools
PROM
Prompt
     #
     $
     %
     bash
     defined
     job control and
     login 2nd
     PS2
     PS3
     representation
     root
     secondary
     shell 2nd
     Superuser
     tcsh 2nd
     variable
prompt variable
prompt2 variable
prompt3 variable
Property list files 2nd
Protected memory
Protocol
     connection-oriented 2nd
     connectionless
     datagram-oriented
     defined 2nd
     DHCP
     HTTP
     HTTPS
     ICMP
     IPP
     ISO model
     network
     NNTP
     PPP
     SLIP
     TCP/IP
     TELNET 2nd
     UDP
protocols file
Proxy
     defined 2nd
     gateway 2nd
     server 2nd
ps filename extension
ps utility 2nd 3rd 4th 5th
PS1 variable 2nd
PS2 variable 2nd
PS3 variable
PS4 variable
pub directory
Public-key encryption, OpenSSH
Puma
pushd builtin 2nd 3rd
pushdsilent variable
pushdtohome variable
putchar C macro
pwd builtin 2nd 3rd
pwd utility
PWD variable
Python