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P

• paste - merge corresponding or subsequent lines of files
• patch - apply changes to files
• pathchk - check pathnames
• pathconf(), fpathconf - get configurable pathname variables
• pause() - suspend the thread until a signal is received
• pax - portable archive interchange
• pclose() - close a pipe stream to or from a process
• perror() - write error messages to standard error
• pipe() - create an interprocess channel
• poll() - input/output multiplexing
• poll.h - definitions for the poll() function
• popen() - initiate pipe streams to or from a process
• posix_fadvise() - file advisory information (ADVANCED REALTIME)
• posix_fallocate() - file space control (ADVANCED REALTIME)
• posix_madvise() - memory advisory information and alignment control (ADVANCED REALTIME)
• posix_memalign() - aligned memory allocation (ADVANCED REALTIME)
• posix_mem_offset() - find offset and length of a mapped typed memory block (ADVANCED REALTIME)
• posix_openpt() - open a pseudo-terminal device
• posix_spawn(), posix_spawnp - spawn a process (ADVANCED REALTIME)
• posix_spawnattr_destroy(), posix_spawnattr_init - destroy and initialize spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_getflags(), posix_spawnattr_setflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_getpgroup(), posix_spawnattr_setpgroup - get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_getschedparam(), posix_spawnattr_setschedparam - get and set the spawn-schedparam attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_getschedpolicy(), posix_spawnattr_setschedpolicy - get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_getsigdefault(), posix_spawnattr_setsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_getsigmask(), posix_spawnattr_setsigmask - get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_init(), posix_spawnattr_destroy - destroy and initialize spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_setflags(), posix_spawnattr_getflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_setpgroup(), posix_spawnattr_getpgroup - get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_setschedparam(), posix_spawnattr_getschedparam - get and set the spawn-schedparam attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_setschedpolicy(), posix_spawnattr_getschedpolicy - get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_setsigdefault(), posix_spawnattr_getsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnattr_setsigmask(), posix_spawnattr_getsigmask - get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)
• posix_spawnp(), posix_spawn - spawn a process (ADVANCED REALTIME)
• posix_spawn_file_actions_addclose(), posix_spawn_file_actions_addopen - add close or open action to spawn file actions object (ADVANCED REALTIME)
• posix_spawn_file_actions_adddup2() - add dup2 action to spawn file actions object (ADVANCED REALTIME)
• posix_spawn_file_actions_addopen(), posix_spawn_file_actions_addclose - add close or open action to spawn file actions object (ADVANCED REALTIME)
• posix_spawn_file_actions_destroy(), posix_spawn_file_actions_init - destroy and initialize spawn file actions object (ADVANCED REALTIME)
• posix_spawn_file_actions_init(), posix_spawn_file_actions_destroy - destroy and initialize spawn file actions object (ADVANCED REALTIME)
• posix_trace_attr_destroy(), posix_trace_attr_init - destroy and initialize the trace stream attributes object (TRACING)
• posix_trace_attr_getclockres(), posix_trace_attr_getcreatetime, posix_trace_attr_getgenversion, posix_trace_attr_getname, posix_trace_attr_setname - retrieve and set information about a trace stream (TRACING)
• posix_trace_attr_getcreatetime(), posix_trace_attr_getclockres, posix_trace_attr_getgenversion, posix_trace_attr_getname, posix_trace_attr_setname - retrieve and set information about a trace stream (TRACING)
• posix_trace_attr_getgenversion(), posix_trace_attr_getclockres, posix_trace_attr_getcreatetime, posix_trace_attr_getname, posix_trace_attr_setname - retrieve and set information about a trace stream (TRACING)
• posix_trace_attr_getinherited(), posix_trace_attr_getlogfullpolicy, posix_trace_attr_getstreamfullpolicy, posix_trace_attr_setinherited, posix_trace_attr_setlogfullpolicy, posix_trace_attr_setstreamfullpolicy - retrieve and set the behavior of a trace stream (TRACING)
• posix_trace_attr_getlogfullpolicy(), posix_trace_attr_getinherited, posix_trace_attr_getstreamfullpolicy, posix_trace_attr_setinherited, posix_trace_attr_setlogfullpolicy, posix_trace_attr_setstreamfullpolicy - retrieve and set the behavior of a trace stream (TRACING)
• posix_trace_attr_getlogsize(), posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setlogsize, posix_trace_attr_setmaxdatasize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_getmaxdatasize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setlogsize, posix_trace_attr_setmaxdatasize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_getmaxsystemeventsize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setlogsize, posix_trace_attr_setmaxdatasize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_getmaxusereventsize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setlogsize, posix_trace_attr_setmaxdatasize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_getname(), posix_trace_attr_getclockres, posix_trace_attr_getcreatetime, posix_trace_attr_getgenversion, posix_trace_attr_setname - retrieve and set information about a trace stream (TRACING)
• posix_trace_attr_getstreamfullpolicy(), posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, posix_trace_attr_setinherited, posix_trace_attr_setlogfullpolicy, posix_trace_attr_setstreamfullpolicy - retrieve and set the behavior of a trace stream (TRACING)
• posix_trace_attr_getstreamsize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_setlogsize, posix_trace_attr_setmaxdatasize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_init(), posix_trace_attr_destroy - destroy and initialize the trace stream attributes object (TRACING)
• posix_trace_attr_setinherited(), posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, posix_trace_attr_getstreamfullpolicy, posix_trace_attr_setlogfullpolicy, posix_trace_attr_setstreamfullpolicy - retrieve and set the behavior of a trace stream (TRACING)
• posix_trace_attr_setlogfullpolicy(), posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, posix_trace_attr_getstreamfullpolicy, posix_trace_attr_setinherited, posix_trace_attr_setstreamfullpolicy - retrieve and set the behavior of a trace stream (TRACING)
• posix_trace_attr_setlogsize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setmaxdatasize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_setmaxdatasize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setlogsize, posix_trace_attr_setstreamsize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_attr_setname(), posix_trace_attr_getclockres, posix_trace_attr_getcreatetime, posix_trace_attr_getgenversion, posix_trace_attr_getname - retrieve and set information about a trace stream (TRACING)
• posix_trace_attr_setstreamfullpolicy(), posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, posix_trace_attr_getstreamfullpolicy, posix_trace_attr_setinherited, posix_trace_attr_setlogfullpolicy - retrieve and set the behavior of a trace stream (TRACING)
• posix_trace_attr_setstreamsize(), posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, posix_trace_attr_getmaxsystemeventsize, posix_trace_attr_getmaxusereventsize, posix_trace_attr_getstreamsize, posix_trace_attr_setlogsize, posix_trace_attr_setmaxdatasize - retrieve and set trace stream size attributes (TRACING)
• posix_trace_clear() - clear trace stream and trace log (TRACING)
• posix_trace_close(), posix_trace_open, posix_trace_rewind - trace log management (TRACING)
• posix_trace_create(), posix_trace_create_withlog, posix_trace_flush, posix_trace_shutdown - trace stream initialization, flush, and shutdown from a process (TRACING)
• posix_trace_create_withlog(), posix_trace_create, posix_trace_flush, posix_trace_shutdown - trace stream initialization, flush, and shutdown from a process (TRACING)
• posix_trace_event(), posix_trace_eventid_open - trace functions for instrumenting application code (TRACING)
• posix_trace_eventid_equal(), posix_trace_eventid_get_name, posix_trace_trid_eventid_open - manipulate the trace event type identifier (TRACING)
• posix_trace_eventid_get_name(), posix_trace_eventid_equal, posix_trace_trid_eventid_open - manipulate the trace event type identifier (TRACING)
• posix_trace_eventid_open(), posix_trace_event - trace functions for instrumenting application code (TRACING)
• posix_trace_eventset_add(), posix_trace_eventset_del, posix_trace_eventset_empty, posix_trace_eventset_fill, posix_trace_eventset_ismember - manipulate trace event type sets (TRACING)
• posix_trace_eventset_del(), posix_trace_eventset_add, posix_trace_eventset_empty, posix_trace_eventset_fill, posix_trace_eventset_ismember - manipulate trace event type sets (TRACING)
• posix_trace_eventset_empty(), posix_trace_eventset_add, posix_trace_eventset_del, posix_trace_eventset_fill, posix_trace_eventset_ismember - manipulate trace event type sets (TRACING)
• posix_trace_eventset_fill(), posix_trace_eventset_add, posix_trace_eventset_del, posix_trace_eventset_empty, posix_trace_eventset_ismember - manipulate trace event type sets (TRACING)
• posix_trace_eventset_ismember(), posix_trace_eventset_add, posix_trace_eventset_del, posix_trace_eventset_empty, posix_trace_eventset_fill - manipulate trace event type sets (TRACING)
• posix_trace_eventtypelist_getnext_id(), posix_trace_eventtypelist_rewind - iterate over a mapping of trace event types (TRACING)
• posix_trace_eventtypelist_rewind(), posix_trace_eventtypelist_getnext_id - iterate over a mapping of trace event types (TRACING)
• posix_trace_flush(), posix_trace_create, posix_trace_create_withlog, posix_trace_shutdown - trace stream initialization, flush, and shutdown from a process (TRACING)
• posix_trace_getnext_event(), posix_trace_timedgetnext_event, posix_trace_trygetnext_event - retrieve a trace event (TRACING)
• posix_trace_get_attr(), posix_trace_get_status - retrieve the trace attributes or trace status (TRACING)
• posix_trace_get_filter(), posix_trace_set_filter - retrieve and set the filter of an initialized trace stream (TRACING)
• posix_trace_get_status(), posix_trace_get_attr - retrieve the trace attributes or trace status (TRACING)
• posix_trace_open(), posix_trace_close, posix_trace_rewind - trace log management (TRACING)
• posix_trace_rewind(), posix_trace_close, posix_trace_open - trace log management (TRACING)
• posix_trace_set_filter(), posix_trace_get_filter - retrieve and set the filter of an initialized trace stream (TRACING)
• posix_trace_shutdown(), posix_trace_create, posix_trace_create_withlog, posix_trace_flush - trace stream initialization, flush, and shutdown from a process (TRACING)
• posix_trace_start(), posix_trace_stop - trace start and stop (TRACING)
• posix_trace_stop(), posix_trace_start - trace start and stop (TRACING)
• posix_trace_timedgetnext_event(), posix_trace_getnext_event, posix_trace_trygetnext_event - retrieve a trace event (TRACING)
• posix_trace_trid_eventid_open(), posix_trace_eventid_equal, posix_trace_eventid_get_name - manipulate the trace event type identifier (TRACING)
• posix_trace_trygetnext_event(), posix_trace_getnext_event, posix_trace_timedgetnext_event - retrieve a trace event (TRACING)
• posix_typed_mem_get_info() - query typed memory information (ADVANCED REALTIME)
• posix_typed_mem_open() - open a typed memory object (ADVANCED REALTIME)
• pow(), powf, powl - power function
• powf(), pow, powl - power function
• powl(), pow, powf - power function
• pr - print files
• pread(), read - read from a file
• printf - write formatted output
• printf(), dprintf, fprintf, snprintf, sprintf - print formatted output
• prs - print an SCCS file (DEVELOPMENT)
• ps - report process status
• pselect(), select - synchronous I/O multiplexing
• psiginfo(), psignal - print signal information to standard error
• psignal(), psiginfo - print signal information to standard error
• pthread.h - threads
• pthread_atfork() - register fork handlers
• pthread_attr_destroy(), pthread_attr_init - destroy and initialize the thread attributes object
• pthread_attr_getdetachstate(), pthread_attr_setdetachstate - get and set the detachstate attribute
• pthread_attr_getguardsize(), pthread_attr_setguardsize - get and set the thread guardsize attribute
• pthread_attr_getinheritsched(), pthread_attr_setinheritsched - get and set the inheritsched attribute (REALTIME THREADS)
• pthread_attr_getschedparam(), pthread_attr_setschedparam - get and set the schedparam attribute
• pthread_attr_getschedpolicy(), pthread_attr_setschedpolicy - get and set the schedpolicy attribute (REALTIME THREADS)
• pthread_attr_getscope(), pthread_attr_setscope - get and set the contentionscope attribute (REALTIME THREADS)
• pthread_attr_getstack(), pthread_attr_setstack - get and set stack attributes
• pthread_attr_getstacksize(), pthread_attr_setstacksize - get and set the stacksize attribute
• pthread_attr_init(), pthread_attr_destroy - destroy and initialize the thread attributes object
• pthread_attr_setdetachstate(), pthread_attr_getdetachstate - get and set the detachstate attribute
• pthread_attr_setguardsize(), pthread_attr_getguardsize - get and set the thread guardsize attribute
• pthread_attr_setinheritsched(), pthread_attr_getinheritsched - get and set the inheritsched attribute (REALTIME THREADS)
• pthread_attr_setschedparam(), pthread_attr_getschedparam - get and set the schedparam attribute
• pthread_attr_setschedpolicy(), pthread_attr_getschedpolicy - get and set the schedpolicy attribute (REALTIME THREADS)
• pthread_attr_setscope(), pthread_attr_getscope - get and set the contentionscope attribute (REALTIME THREADS)
• pthread_attr_setstack(), pthread_attr_getstack - get and set stack attributes
• pthread_attr_setstacksize(), pthread_attr_getstacksize - get and set the stacksize attribute
• pthread_barrierattr_destroy(), pthread_barrierattr_init - destroy and initialize the barrier attributes object
• pthread_barrierattr_getpshared(), pthread_barrierattr_setpshared - get and set the process-shared attribute of the barrier attributes object
• pthread_barrierattr_init(), pthread_barrierattr_destroy - destroy and initialize the barrier attributes object
• pthread_barrierattr_setpshared(), pthread_barrierattr_getpshared - get and set the process-shared attribute of the barrier attributes object
• pthread_barrier_destroy(), pthread_barrier_init - destroy and initialize a barrier object
• pthread_barrier_init(), pthread_barrier_destroy - destroy and initialize a barrier object
• pthread_barrier_wait() - synchronize at a barrier
• pthread_cancel() - cancel execution of a thread
• pthread_cleanup_pop(), pthread_cleanup_push - establish cancellation handlers
• pthread_cleanup_push(), pthread_cleanup_pop - establish cancellation handlers
• pthread_condattr_destroy(), pthread_condattr_init - destroy and initialize the condition variable attributes object
• pthread_condattr_getclock(), pthread_condattr_setclock - get and set the clock selection condition variable attribute
• pthread_condattr_getpshared(), pthread_condattr_setpshared - get and set the process-shared condition variable attributes
• pthread_condattr_init(), pthread_condattr_destroy - destroy and initialize the condition variable attributes object
• pthread_condattr_setclock(), pthread_condattr_getclock - get and set the clock selection condition variable attribute
• pthread_condattr_setpshared(), pthread_condattr_getpshared - get and set the process-shared condition variable attributes
• pthread_cond_broadcast(), pthread_cond_signal - broadcast or signal a condition
• pthread_cond_destroy(), pthread_cond_init - destroy and initialize condition variables
• pthread_cond_init(), pthread_cond_destroy - destroy and initialize condition variables
• pthread_cond_signal(), pthread_cond_broadcast - broadcast or signal a condition
• pthread_cond_timedwait(), pthread_cond_wait - wait on a condition
• pthread_cond_wait(), pthread_cond_timedwait - wait on a condition
• pthread_create() - thread creation
• pthread_detach() - detach a thread
• pthread_equal() - compare thread IDs
• pthread_exit() - thread termination
• pthread_getconcurrency(), pthread_setconcurrency - get and set the level of concurrency
• pthread_getcpuclockid() - access a thread CPU-time clock (ADVANCED REALTIME THREADS)
• pthread_getschedparam(), pthread_setschedparam - dynamic thread scheduling parameters access (REALTIME THREADS)
• pthread_getspecific(), pthread_setspecific - thread-specific data management
• pthread_join() - wait for thread termination
• pthread_key_create() - thread-specific data key creation
• pthread_key_delete() - thread-specific data key deletion
• pthread_kill() - send a signal to a thread
• pthread_mutexattr_destroy(), pthread_mutexattr_init - destroy and initialize the mutex attributes object
• pthread_mutexattr_getprioceiling(), pthread_mutexattr_setprioceiling - get and set the prioceiling attribute of the mutex attributes object (REALTIME THREADS)
• pthread_mutexattr_getprotocol(), pthread_mutexattr_setprotocol - get and set the protocol attribute of the mutex attributes object (REALTIME THREADS)
• pthread_mutexattr_getpshared(), pthread_mutexattr_setpshared - get and set the process-shared attribute
• pthread_mutexattr_getrobust(), pthread_mutexattr_setrobust - get and set the mutex robust attribute
• pthread_mutexattr_gettype(), pthread_mutexattr_settype - get and set the mutex type attribute
• pthread_mutexattr_init(), pthread_mutexattr_destroy - destroy and initialize the mutex attributes object
• pthread_mutexattr_setprioceiling(), pthread_mutexattr_getprioceiling - get and set the prioceiling attribute of the mutex attributes object (REALTIME THREADS)
• pthread_mutexattr_setprotocol(), pthread_mutexattr_getprotocol - get and set the protocol attribute of the mutex attributes object (REALTIME THREADS)
• pthread_mutexattr_setpshared(), pthread_mutexattr_getpshared - get and set the process-shared attribute
• pthread_mutexattr_setrobust(), pthread_mutexattr_getrobust - get and set the mutex robust attribute
• pthread_mutexattr_settype(), pthread_mutexattr_gettype - get and set the mutex type attribute
• pthread_mutex_consistent() - mark state protected by robust mutex as consistent
• pthread_mutex_destroy(), pthread_mutex_init - destroy and initialize a mutex
• pthread_mutex_getprioceiling(), pthread_mutex_setprioceiling - get and set the priority ceiling of a mutex (REALTIME THREADS)
• pthread_mutex_init(), pthread_mutex_destroy - destroy and initialize a mutex
• pthread_mutex_lock(), pthread_mutex_trylock, pthread_mutex_unlock - lock and unlock a mutex
• pthread_mutex_setprioceiling(), pthread_mutex_getprioceiling - get and set the priority ceiling of a mutex (REALTIME THREADS)
• pthread_mutex_timedlock() - lock a mutex
• pthread_mutex_trylock(), pthread_mutex_lock, pthread_mutex_unlock - lock and unlock a mutex
• pthread_mutex_unlock(), pthread_mutex_lock, pthread_mutex_trylock - lock and unlock a mutex
• pthread_once() - dynamic package initialization
• pthread_rwlockattr_destroy(), pthread_rwlockattr_init - destroy and initialize the read-write lock attributes object
• pthread_rwlockattr_getpshared(), pthread_rwlockattr_setpshared - get and set the process-shared attribute of the read-write lock attributes object
• pthread_rwlockattr_init(), pthread_rwlockattr_destroy - destroy and initialize the read-write lock attributes object
• pthread_rwlockattr_setpshared(), pthread_rwlockattr_getpshared - get and set the process-shared attribute of the read-write lock attributes object
• pthread_rwlock_destroy(), pthread_rwlock_init - destroy and initialize a read-write lock object
• pthread_rwlock_init(), pthread_rwlock_destroy - destroy and initialize a read-write lock object
• pthread_rwlock_rdlock(), pthread_rwlock_tryrdlock - lock a read-write lock object for reading
• pthread_rwlock_timedrdlock() - lock a read-write lock for reading
• pthread_rwlock_timedwrlock() - lock a read-write lock for writing
• pthread_rwlock_tryrdlock(), pthread_rwlock_rdlock - lock a read-write lock object for reading
• pthread_rwlock_trywrlock(), pthread_rwlock_wrlock - lock a read-write lock object for writing
• pthread_rwlock_unlock() - unlock a read-write lock object
• pthread_rwlock_wrlock(), pthread_rwlock_trywrlock - lock a read-write lock object for writing
• pthread_self() - get the calling thread ID
• pthread_setcancelstate(), pthread_setcanceltype, pthread_testcancel - set cancelability state
• pthread_setcanceltype(), pthread_setcancelstate, pthread_testcancel - set cancelability state
• pthread_setconcurrency(), pthread_getconcurrency - get and set the level of concurrency
• pthread_setschedparam(), pthread_getschedparam - dynamic thread scheduling parameters access (REALTIME THREADS)
• pthread_setschedprio() - dynamic thread scheduling parameters access (REALTIME THREADS)
• pthread_setspecific(), pthread_getspecific - thread-specific data management
• pthread_sigmask(), sigprocmask - examine and change blocked signals
• pthread_spin_destroy(), pthread_spin_init - destroy or initialize a spin lock object
• pthread_spin_init(), pthread_spin_destroy - destroy or initialize a spin lock object
• pthread_spin_lock(), pthread_spin_trylock - lock a spin lock object
• pthread_spin_trylock(), pthread_spin_lock - lock a spin lock object
• pthread_spin_unlock() - unlock a spin lock object
• pthread_testcancel(), pthread_setcancelstate, pthread_setcanceltype - set cancelability state
• ptsname() - get name of the slave pseudo-terminal device
• putc() - put a byte on a stream
• putchar() - put a byte on a stdout stream
• putchar_unlocked(), getc_unlocked, getchar_unlocked, putc_unlocked - stdio with explicit client locking
• putc_unlocked(), getc_unlocked, getchar_unlocked, putchar_unlocked - stdio with explicit client locking
• putenv() - change or add a value to an environment
• putmsg(), putpmsg - send a message on a STREAM (STREAMS)
• putpmsg(), putmsg - send a message on a STREAM (STREAMS)
• puts() - put a string on standard output
• pututxline(), endutxent, getutxent, getutxid, getutxline, setutxent - user accounting database functions
• putwc() - put a wide character on a stream
• putwchar() - put a wide character on a stdout stream
• pwd - return working directory name
• pwd.h - password structure
• pwrite(), write - write on a file

• Page Size
• Page
• Parameter
• Parameters that Can be Set
• Parent Directory
• Parent Process ID
• Parent Process
• Path Prefix
• Pathname Component
• Pathname Resolution
• Pathname
• Pattern
• Period Character (<period>)
• Permissions
• Persistence
• Pipe
• Polling
• Portable Character Set
• Portable Character Set (DESCRIPTION)
• Portable Filename Character Set
• Positional Parameter
• POSIX Locale
• Preallocation
• Preempted Process (or Thread)
• Previous Job
• Printable Character
• Printable File
• Priority Band
• Priority Inversion
• Priority Scheduling
• Priority-Based Scheduling
• Priority
• Privilege
• Process Group ID
• Process Group Leader
• Process Group Lifetime
• Process Group
• Process ID Reuse
• Process ID
• Process Lifetime
• Process Memory Locking
• Process Termination
• Process Virtual Time
• Process-To-Process Communication
• Process
• Program
• Protocol
• Pseudo-Terminal