AIX Documentation: Programmer's Reference:
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Programmer's Reference
R
RD Gets the pointer to the read queue.
raise Sends a signal to the currently running program.
rand Generates pseudo-random numbers.
rand_r Generates pseudo-random numbers.
random Generates pseudo-random numbers more efficiently.
raw Puts the terminal into or out of CBREAK mode.
rcmd Allows execution of commands on a remote host.
re_comp Regular expression handler.
re_exec Regular expression handler.
read Reads from a file.
read_real_time Read the processor real time clock or time base registers to obtain high-resolution elapsed time.
readdir Performs operations on directories.
readdir_r Reads a directory.
readlink Reads the contents of a symbolic link.
readobjects Allows the SNMP multiplexing (SMUX) peer to read the Management Information Base (MIB) variable structure.
readv Reads from a file.
readvx Reads from a file.
readx Reads from a file.
realloc Provides a memory allocator.
realpath Resolves path names.
reboot Restarts the system.
recv Receives messages from connected sockets.
recvfrom Receives messages from sockets.
recvmsg Receives a message from any socket.
refresh Updates the terminal's display and the curscr to reflect changes made to a window.
regcmp Compiles and matches regular-expression patterns.
regcomp Compiles a specified basic or extended regular expression into an executable string.
regerror Returns a string that describes the ErrCode parameter.
regex Compiles and matches regular-expression patterns.
regexec Compares the null-terminated string specified by the value of the String parameter against the compiled basic or extended regular expression Preg, which must have previously been compiled by a call to the regcomp subroutine.
regfree Frees any memory allocated by the regcomp subroutine associated with the Preg parameter.
registerrpc Registers a procedure with the Remote Procedure Call (RPC) service package.
reltimerid Releases a previously allocated interval timer.
remainder Computes the IEEE Remainder as defined in the IEEE Floating-Point Standard.
remove Removes a file.
remque Inserts or removes an element in a queue.
rename Renames a directory or a file.
res_init Searches for a default domain name and Internet address.
res_mkquery Makes query messages for name servers.
res_query Provides an interface to the server query mechanism.
res_search Makes a query and awaits a response.
res_send Sends a query to a name server and retrieves a response.
resabs Manipulates the expiration time of interval timers.
reset_prog_mode Saves/restores the program or shell terminal modes.
reset_shell_mode Saves/restores the program or shell terminal modes.
reset_speed Set and get the terminal baud rate.
resetterm Resets terminal modes to what they were when the saveterm subroutine was last called.
resetty Saves/restores the terminal mode.
resinc Manipulates the expiration time of interval timers.
restartterm Interfaces to the terminfo database.
restimer Gets or sets the current value for the specified systemwide timer.
revoke Revokes access to a file.
rewind Repositions the file pointer of a stream.
rewinddir Performs operations on directories.
rexec Allows command execution on a remote host.
rint The floor subroutine, floorl subroutine, ceil subroutine, ceill subroutine, nearest subroutine, trunc subroutine, and rint subroutine round floating-point numbers to floating-point integer values. The itrunc subroutine and uitrunc subroutine round floating-point numbers to signed and unsigned integers, respectively. The fmod subroutine and fmodl subroutine compute the modulo remainder. The fabs subroutine and fabsl subroutine compute the floating-point absolute value.
ripoffline Reserves a line for a dedicated purpose.
rmdir Removes a directory.
rmvb Removes a message block from a message.
rmvq Removes a message from a queue.
rpc_alloc_handle Creates a Remote Procedure Call (RPC) handle.
rpc_bind Allocates an Remote Procedure Call (RPC) handle and sets its binding to a server.
rpc_clear_binding Unsets the binding between a Remote Procedure Call (RPC) handle and a host and server.
rpc_clear_server_binding Unsets the binding between a Remote Procedure Call (RPC) handle and a server.
rpc_dup_handle Makes a copy of a Remote Procedure Call (RPC) handle.
rpc_free_handle Frees a Remote Procedure Call (RPC) handle.
rpc_inq_binding Returns the socket address represented by a Remote Procedure Call (RPC) handle.
rpc_inq_object Returns the object Universal Unique Identifier (UUID) represented by a Remote Procedure Call (RPC) handle.
rpc_listen Listens for and handles remote procedure call packets.
rpc_name_to_sockaddr Converts a host name and port number to a socket address.
rpc_register Registers an interface at a server.
rpc_set_binding Associates a Remote Procedure Call (RPC) handle with a server.
rpc_sockaddr_to_name Converts a socket address to a host name and port number.
rpc_unregister Unregisters an interface.
rpc_use_family Creates a socket of a specified address family for a Remote Procedure Call (RPC) server.
rpc_use_family_wk Creates a socket with a well-known port for a Remote Procedure Call (RPC) server.
rpmatch Determines whether the response to a question is affirmative or negative.
rpow Multiple-precision integer arithmetic.
rresvport Retrieves a socket with a privileged address.
rsqrt Computes the reciprocal of the square root of a number.
rstat Gets performance data from remote kernels.
rtime Gets remote time.
ruserok Allows servers to authenticate clients.