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| ranlib | Converts archive libraries to random libraries. |
| rc | Performs normal startup initialization. |
| rc.powerfail | Shuts down a system when a power failure is detected. |
| rcp | Transfers files between a local and a remote host or between two remote hosts. |
| rcvdist | Sends a copy of incoming messages to additional recipients. |
| rcvpack | Saves incoming messages in a packed file. |
| rcvstore | Incorporates new mail from standard input into a folder. |
| rcvtty | Notifies the user of incoming messages. |
| rdist | Maintains identical copies of files on multiple hosts. |
| rdump | Backs up files onto a remote machines' device. |
| read | Reads one line from standard input. |
| readfile | Displays the text of INed structured files. |
| readlvcopy | Reads a specific mirror copy of a logical volume. |
| reboot | Restarts the system. |
| red | Edits text by line. |
| redefinevg | Redefines the set of physical volumes of the given volume group in the device configuration database. |
| reducevg | Removes physical volumes from a volume group. |
| refer | Finds and inserts literature references in documents. |
| refile | Moves files between folders. |
| refresh | Requests a refresh of a subsystem or group of subsystems. |
| regcmp | Compiles patterns into C language char declarations. |
| rembak | Sends a print job to a queue on a remote server. |
| remove | Deletes files from var/adm/acct subdirectories. |
| remsh | Executes the specified command at the remote host or logs into the remote host. |
| renice | Alters priority of running processes. |
| reorgvg | Reorganizes the physical partition allocation for a volume group. |
| repl | Replies to a message. |
| repquota | Summarizes quotas for a file system. |
| reset | Initializes terminals. |
| resize | Sets the TERMCAP environment variable and terminal settings to the current window size. |
| resolve_links | Enables and disables cross-book links to HTML library books that were not installed on the system. |
| restbase | Reads the base-customized information from the boot image and restores it into the Device Configuration database used during system boot phase 1. |
| restore | Copies previously backed-up file systems or files, created by the backup command, from a local device. |
| restvg | Restores the user volume group and all it containers and files, as specified in the /tmp/vgdata/vgname/vgname.data file contained within the backup image created by the savevg command. |
| rev | Reverse characters in each line of a file. |
| revnetgroup | Reverses the listing of users and hosts in network group files in NIS maps. |
| rexd | Executes program for remote machines. |
| rexec | Executes commands one at a time on a remote host. |
| rexecd | Provides the server function for the rexec command. |
| rgb | Creates the database used by the X-Window system server for colors. |
| ripquery | Queries the RIP gateways. |
| rlogin | Connects the local host with a remote host. |
| rlogind | Provides the server function for the rlogin command. |
| rm | Removes (unlinks) files or directories. |
| rmail | Handles remote mail received through Basic Networking Utilities (BNU). |
| rmdel | Removes a delta from a SCCS file. |
| rmdev | Removes a device from the system. |
| rmdir | Removes a directory. |
| rmdsmitd | Removes a domain from the member list in DSMIT. |
| rmf | Removes folders and the messages they contain. |
| rmfilt | Removes a filter rule. |
| rmfs | Removes a file system. |
| rmgroup | Removes a group. |
| rmhist | Removes the history information from INed structured files. |
| rmitab | Removes records in the /etc/inittab file. |
| rmkeyserv | Stops the keyserv daemon and comments the entry in the /etc/rc.nfs file. |
| rmlv | Removes logical volumes from a volume group. |
| rmlvcopy | Removes copies from a logical volume. |
| rmm | Removes messages from active status. |
| rmnamsv | Unconfigures TCP/IP-based name service on a host. |
| rmnfs | Changes the configuration of the system to stop running NFS daemons. |
| rmnfsexp | Unexports a directory from NFS clients. |
| rmnfsmnt | Removes an NFS mount. |
| rmnotify | Removes a notify method definition from the Notify object class. |
| rmprtsv | Unconfigures a print service on a client or server machine. |
| rmps | Remove a paging space from the system along with any logical volume on which it resides. |
| rmque | Removes a printer queue from the system. |
| rmquedev | Removes a printer or plotter queue device from the system. |
| rmrole | Removes a role. This command applies only to AIX Version 4.2.1 and later. |
| rmserver | Removes a subserver definition from the Subserver Type object class. |
| rmss | Simulates a system with various sizes of memory for performance testing of applications. |
| rmssys | Removes a subsystem definition from the subsystem object class. |
| rmt | Allows remote access to magnetic tape devices. |
| rmtun | Deactivates operational tunnel(s) and optionally removes tunnel definition(s). |
| rmuser | Removes a user account. |
| rmvfs | Removes entries in the /etc/vfs file. |
| rmvirprt | Removes a virtual printer. |
| rmyp | Removes the configuration for NIS. |
| roffbib | Prints a bibliographic database. |
| route | Manually manipulates the routing tables. |
| routed | Manages network routing tables. |
| rpc.pcnfsd | Handles service requests from PC-NFS (Personal Computers Network File System) clients. |
| rpcgen | Generates C code to implement an RPC protocol. |
| rpcinfo | Reports the status of Remote Procedure Call (RPC) servers. |
| rpl | Replaces all occurrences of a string in a file. |
| rrestore | Copies previously backed file systems from a remote machine's device to the local machine. |
| Rsh | Invokes a restricted version of the Bourne shell. |
| rsh | Executes the specified command at the remote host or logs into the remote host. |
| rshd | Provides the server function for remote command execution. |
| rstatd | Returns performance statistics obtained from the kernel. |
| rtl_enable | Relinks shared objects to enable the runtime linker to use them. This command applies to AIX Version 4.2 or later. |
| runacct | Runs daily accounting. |
| runcat | Pipes output data from the mkcatdefs command to the gencat command. |
| rup | Shows the status of a remote host on the local network. |
| ruptime | Shows the status of each host on a network. |
| ruser | Directly manipulates entries in three separate system databases that control foreign host access to programs. |
| rusers | Reports a list of users logged on to remote machines. |
| rusersd | Responds to queries from the rusers command. |
| rwall | Sends messages to all users on the network. |
| rwalld | Handles requests from the rwall command. |
| rwho | Shows which users are logged in to hosts on the local network. |
| rwhod | Provides the server function for the rwho and ruptime commands. |
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