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RRRRR╥ OOOO╧ SSSS╙ RR RR OOO OOO SS SS RR RR OO OO SS RR RR OO OO SS RRRRRR OO OO SSSSS RRRR OO OO SS RR RR OO OO SS RR RR OOO OOO SS SS RR RR OOOOO SSSSS ááááááááááááááááááááá╒á╙á┼á╥áºá╙ááá╟á╒á╔á─á┼ì ááááááááááááááááááááááááááUser'≤áGuidσ áááááááááááááááááááááááááááááááfo≥ ááááááááááááááááááRemotσáOperatinτáSysteφá(ROS⌐ Versioεá3.4ááOctober 19¼á198╡ áááááááááááááááAlbuquerquσáRCP/═áááá(505)299-597┤ ááááááááááááááááááááááááStevσáFo°á¡áSyso≡ áááááROS.PA╙á anΣá thσ associateΣ suppor⌠á file≤á (includinτ ì áááááthi≤á documentatioεá file⌐ arσ Copyrigh⌠á (c⌐á 198╡á b∙ ì áááááSteveεá Fox«á Non-commercial¼á publiπ distributioε anΣ ì áááááusσ oµ thi≤ systeφ i≤ permitted« Al∞ commercia∞ right≤ ì áááááarσ reserved«á Distributioε oµ RO╙ shoulΣ includσá thi≤ ì documentation. SYSTEM PROMPTS System prompts consist of several components: Time remaining Current system Current area (for message and file systems) Library name (while a library is active) Optional help reminder (controlled by help level) For example, 32-Files NEWIN [press "?" for menu]> indicate≤á tha⌠ yo⌡ havσ 3▓ minute≤ remaininτ oε thσ system¼á arσ ì currentl∙á iε thσ file≤ system¼á anΣ loggeΣ int∩ thσ NEWI╬á area« ì ShoulΣ yo⌡ ente≥ ß library¼ you≥ promp⌠ migh⌠ looδ somethinτ likσ ì thσ following: 13-Files NEWIN [VECTOR.LBR]> ROS v3.4 User's Guide page 3 KE┘ ENTRIES Unlikσá mos⌠á othe≥á RBB╙ programs¼á RO╙á accept≤á singlσá lette≥ ì command≤á (uppe≥á o≥ lowe≥ case⌐ withou⌠ thσ neeΣ fo≥ ßá carriagσ ì returε (CR)« Fo≥ examplσ "Tó insteaΣ oµ "TYPE"« Thσ systeφ wil∞ ì ech∩ thσ ful∞ command« Thσá use≥á ma∙á asδ fo≥ hel≡ b∙ typinτ "?ó a⌠á an∙á prompt«á Thσ ì command≤á availablσ fo≥ tha⌠ particula≥ areß anΣá thei≥á meaning≤ ì wil∞ bσ displayed. Al∞á command≤ arσ executeΣ wheε thσ singlσ keystrokσ displayeΣ oε ì thσ menu≤ iε anglσ bracket≤ ("<>"⌐ i≤ entered« Usually¼ ß seconΣ ì promp⌠á wil∞á bσá displayeΣá whicΦá wil∞á indicatσá wha⌠á furthe≥ ì informatioε i≤ requireΣ t∩ completσ thσ operation. Durinτ mos⌠ systeφ displa∙ operations¼ thσ systeφ wil∞ responΣ t∩ ì Xon/Xofµá control¼á i.e«á wheε ^╙ (Xoff⌐ i≤ entered¼á thσ displa∙ ì wil∞ pausσ unti∞ anothe≥ ke∙ i≤ pressed« Usuall∙ thi≤ wil∞ bσ ^╤ ì (Xon)¼á bu⌠á an∙á ke∙á excep⌠ ^├ (ETX⌐ o≥ ^╙á wil∞á continuσá thσ ì listing« ^├ wil∞ sto≡ thσ listinτ completely. ROS v3.4 User's Guide page 4 COMMAN─ SYSTEMS Approximatel∙á 4░ command≤ arσ availablσ t∩ user≤ oµ RO╙ t∩ ente≥ ì anΣá reaΣ messages¼á displa∙á directories¼á transfe≥á files¼á anΣ ì contro∞á thσá systeφ configuration«á Thesσ command≤ arσá groupeΣ ì int∩ threσ commanΣ system≤ a≤ follows: Systeφ Primar∙ Use Messagσ systeφ Ente≥ anΣ reaΣ message≤ to/froφ othe≥ user≤ File≤ systeφ Transfe≥ file≤ Utilitie≤ systeφ Miscellaneou≤ functions Severa∞ command≤ arσ availablσ froφ morσ thaε onσ system«á Thesσ ì command≤ arσ describeΣ below: <G>oodbyσ (logoff) Thi≤á commanΣá i≤á availablσá iε al∞á systems«á I⌠á i≤á useΣá t∩ ì terminatσ thσ remotσ session«á Yo⌡ wil∞ bσ giveε thσ opportunit∙ ì t∩á ente≥ an∙ comment≤ o≥ question≤ t∩ thσ sysop«á Wheε thi≤á i≤ ì done¼ thσ systeφ wil∞ disconnect. <F>ile≤ System Thi≤á commanΣ activate≤ thσ File≤ system«á I⌠ i≤ availablσá froφ ì thσ utilit∙ anΣ file≤ systeφ prompts. tilitie≤ System Thi≤á commanΣ activate≤ thσ Utilitie≤ system«á I⌠á i≤á availablσ ì froφ thσ File≤ anΣ Messagσ systeφ prompts. <M>essagσ System Thi≤ commanΣ activate≤ thσ Messagσ system«á I⌠ i≤ availablσ froφ ì thσ File≤ anΣ Utilitie≤ systeφ prompts. ROS v3.4 User's Guide page 5 MESSAGE SYSTEM Thσá followinτá samplσ men⌡ list≤ thσ command≤ availablσá iεá thσ ì messagσá system«á Subsequen⌠ paragraph≤ describσ eacΦ commanΣ iε ì more detail. Message System Menu ======= Functions ======== ==== Bulletins ===== ==== Other Menus ===== <A>nswer last message read ulletin <F>ile Transfer System <C>hange message area <1> Turbo User Group tilities System <E>nter a message <2╛ ROS nformation for new users <K>ill a message <O>ther systems list <Q>uick-scan messages <R>ead messages <S>can messages <G>oodbye (logoff) <A>nswer last message read Thi≤ commanΣ i≤ simila≥ t∩ thσ <E>nte≥ commanΣ (describeΣ below)« ì Thσ messagσ wil∞ bσ automaticall∙ addresseΣ t∩ thσ individua∞ wh∩ ì entereΣ thσ las⌠ messagσ yo⌡ read. <C>hangσ messagσ area RO╙ support≤ multiplσ messagσ areas¼á i.e«á message≤ arσ fileΣ iε ì group≤ b∙ topic«á Thi≤ effectivel∙ shorten≤ thσ messagσ filσ fo≥ ì an∙á particula≥á use≥á anΣá make≤ findinτá ßá particula≥á messagσ ì easier«á Afte≥ typinτ "C"¼ ente≥ thσ namσ oµ thσ desireΣ messagσ ì areß o≥ ente≥ "?ó anΣ <RETURN╛ t∩ ge⌠ ß men⌡ oµ thσ messagσ area≤ ì available«á Iµ thσ entr∙ canno⌠ bσ found¼ ß shor⌠ versioε oµ thσ ì men⌡ wil∞ bσ displayeΣ anΣ thσ systeφ wil∞ oncσ agaiε promp⌠á fo≥ ì thσá messagσá area«á Iµá aεá entr∙ i≤á no⌠á madσá beforσá typinτ ì <RETURN>¼ thσ systeφ wil∞ remaiε iε thσ curren⌠ area. <E>nte≥ message Unti∞á yo⌡ arσ validated¼á thi≤ commanΣ wil∞ automaticall∙á ente≥ ì al∞ message≤ t∩ thσ sysop. Usσ thi≤ commanΣ t∩ senΣ ß messagσ t∩ anothe≥ user¼ thσ sysop¼ o≥ ì t∩á al∞ user≤ (likσ postinτ ß messagσ oε ß bulletiεá board)«á Iµ ì yo⌡ ente≥ onl∙ ß <RETURN╛ iε responsσ t∩ thσ "FIRS╘ nameó prompt¼ ì thσ messagσ wil∞ g∩ t∩ al∞ users« Iµ yo⌡ senΣ ß privatσ message¼ ì thσ systeφ wil∞ verif∙ thσ recipien⌠ name«á Iµ thσ systeφ canno⌠ ì finΣá thσá addressee¼áá yo⌡á wil∞á bσá informeΣá anΣá giveεáá thσ ì opportunit∙ t∩ tr∙ again. ROS v3.4 User's Guide page 6 T∩ senΣ ß messagσ t∩ thσ sysop¼á ente≥ "SYSOPó a≤ thσ firs⌠ name« ì Thσ promp⌠ fo≥ thσ las⌠ namσ wil∞ no⌠ appear. Durinτ messagσ entry¼á thσ followinτ command≤ arσ availablσ (thi≤ ì menu can be displayed by typing "?" at the "Command>" prompt): =╜ Messagσ Entr∙ Command≤ =╜ =============╜ Editinτ control≤ ============== <L>ist current message Backspace Delete previous character <E>dit a selected line RUB (DEL) Delete previous character <C>ontinue message entry TAB Space to next multiple of 5 column <S>ave message to disk RETURN Complete line entry <Q>uit message entry CTRL-X Delete line to left of cursor (does NOT save message) CTRL-A Move cursor to beginning of line CTRL-S Move cursor one character left CTRL-D Move cursor one character right CTRL-F Update line and move cursor to end CTRL-╟ Deletσ characte≥ a⌠ curso≥ position Fo≥ speed¼ thσ edi⌠ linσ i≤ no⌠ visibl∙ updateΣ unti∞ requesteΣ b∙ CTRL-F. nformation for new users Thi≤á shor⌠á descriptioε oµ thi≤ systeφ wa≤ displayeΣá thσá firs⌠ ì timσ yo⌡ loggeΣ in. <K>il∞ a message Thi≤á commanΣá i≤á useΣá t∩ erasσá aεá existinτá message«á Afte≥ ì enterinτá "K"¼á ente≥ thσ messagσ numbe≥ t∩ erasσ iε responsσá t∩ ì thσá "Messageó prompt«á Iµ thσ messagσ exist≤ anΣ yo⌡á werσá thσ ì autho≥á o≥ thσ individua∞ recipient¼á thσ messagσ wil∞ bσ erased« ì Otherwisσ thσ systeφ wil∞ responΣ witΦ ß "no⌠ foundó message. <O>the≥ system≤ list Thi≤á i≤ ß lis⌠ oµ othe≥ publiπ Bulletiε BoarΣ System≤ (BBS's⌐ iε ì thσ loca∞ area. <Q>uick-scaε messages Afte≥ typinτ "Q"¼ thσ systeφ wil∞ promp⌠ fo≥ thσ startinτ messagσ ì number«á Iµ thσ messagσ numbe≥ canno⌠ bσ found¼á thσ systeφ wil∞ ì star⌠ witΦ nex⌠ sequentia∞ messagσ unles≤ thσ requesteΣ numbe≥ i≤ ì outsidσá thσá rangσ displayeΣ iε brackets«á Iεá tha⌠á case¼á thσ ì systeφá wil∞á star⌠á thσ scaε witΦ thσá nex⌠á messagσá afte≥á thσ ì highes⌠á messagσ reaΣ thσ las⌠ timσ yo⌡ loggeΣ in«á Fo≥ example¼ ì iµá yo⌡á cal∞ oε Saturda∙ anΣ thσ highes⌠ messagσá yo⌡á reaΣá wa≤ ì 1842¼ wheε yo⌡ cal∞ iε oε Tuesda∙ anΣ ente≥ ß <RETURN╛ iε reponsσ ì t∩ thσ "Startó prompt¼ thσ systeφ wil∞ star⌠ thσ displa∙ witΦ thσ ì nex⌠ availablσ messagσ afte≥ 1842. ROS v3.4 User's Guide page 7 Thσ messagσ numbe≥ anΣ topiπ oµ message≤ froφ thσ startinτ numbe≥ ì unti∞ thσ las⌠ messagσ wil∞ theε bσ displayed« Iµ thσ messagσ i≤ ì addresseΣá t∩ yo⌡ privately¼á ß "*ó wil∞ bσá displayed«á Iµá thσ ì messagσ i≤ public¼ ß ":ó wil∞ bσ displayeΣ betweeε thσ numbe≥ anΣ ì thσ topic. <R>eaΣ messages Afte≥á enterinτá "R"¼á thi≤ commanΣ wil∞ promp⌠ fo≥ thσá startinτ ì messagσ numbe≥ iε ß manne≥ identica∞ t∩ quick-scaε anΣ scan«á Iε ì additioε t∩ al∞ thσ informatioε displayeΣ iε scan¼á thi≤á commanΣ ì als∩ display≤ thσ tex⌠ oµ thσ message. Iµá yo⌡á arσá thσá autho≥ oµ thσ messagσ o≥á thσá receive≥á oµá ß ì privatel∙á addresseΣ message¼á thσ systeφ wil∞ asδ iµ yo⌡ wan⌠ t∩ ì deletσ it« ResponΣ witΦ eithe≥ "Yó t∩ deletσ thσ messagσ o≥ witΦ ì "Nó t∩ retaiε thσ messagσ oε thσ system. Iµá thσ messagσ i≤ no⌠ thσ las⌠ message¼á thσ systeφ wil∞ asδá iµ ì yo⌡á wan⌠ t∩ reaΣ thσ nex⌠ sequentia∞ messagσ oεá file«á ResponΣ ì "Yóá t∩ continuσ witΦ thσ reading¼á o≥ witΦ "Nó t∩ terminatσá thσ ì command«á Thσ numbe≥ oµ line≤ pe≥ pagσ caε bσ controlleΣ iεá thσ ì utilit∙á sub-system¼á anΣá iε fact¼á thσ pausσ caε bσá completel∙ ì eliminated. <S>caε messages Thi≤ commanΣ i≤ simila≥ t∩ quick-scan« Iε additioε t∩ thσ numbe≥ ì anΣ topic¼ thσ sende≥ anΣ receive≥ wil∞ bσ displayed. and <1╛ ..« <9> Systeφ anΣ genera∞ interes⌠ bulletins«á Thσ systeφ automaticall∙ ì display≤ thσ systeφ bulletiε (ulletin⌐ eacΦ timσ yo⌡ loτ in. ROS v3.4 User's Guide page 8 FILES SYSTEM Thσá followinτá samplσ men⌡ list≤ thσ command≤ availablσá iεá thσ ì file≤á system«á Subsequen⌠ paragraph≤ describσ eacΦá commanΣá iε ì morσ detail. File Transfer System Menu ==================== Functions ===================== === Other Menus === <C>hange file area <L>ibrary entry/exit <M>essage System <D>irectory of files <N>ewin list tilities System <F>ilesize display <R>eceive file using Xmodem protocol (you --> ROS) <S>end file using Xmodem protocol (ROS --> you) <T>ype ASCII or squeezed file (Xon/Xoff supported) <G>oodbye (logoff) <C>hangσ filσ area Wheεá yo⌡ firs⌠ loτ in¼á yo⌡ wil∞ bσ placeΣ iε thσ "LOGINóá file≤ ì section«á T∩ acces≤ othe≥ file≤ section≤ iε thσ system¼ usσ thi≤ ì command«á Afte≥á typinτ "C"¼á ente≥ thσ namσ oµ thσ desireΣ filσ ì sectioεá o≥á ente≥á "?óá t∩á ge⌠ ßá men⌡á oµá thσá filσá section≤ ì available«á Iµ thσ entr∙ canno⌠ bσ found¼ ß shor⌠ versioε oµ thσ ì men⌡ wil∞ bσ displayeΣ anΣ thσ systeφ wil∞ oncσ agaiε promp⌠á fo≥ ì thσá sectioεá name«á Iµá aεá entr∙ i≤á no⌠á madσá beforσá typinτ ì <RETURN>¼ thσ systeφ wil∞ remaiε iε thσ curren⌠ section. Iµ yo⌡ arσ iε ß librar∙ (seσ nex⌠ description⌐ wheε thi≤á commanΣ ì i≤ entered¼á thσ librar∙ wil∞ bσ closeΣ beforσ thσ systeφ prompt≤ ì fo≥ thσ ne≈ section. <L>ibrary entry/exit Librarie≤á arσá ß ver∙ usefu∞ too∞ t∩ grou≡ relateΣá files«á Fo≥ ì example¼á ß singlσ librar∙ migh⌠ contaiε sourcσ code¼á objec⌠á o≥ ì executablσ code¼ anΣ documentatioε fo≥ ß particula≥ system« SucΦ ì ßá librar∙ i≤ actuall∙ ß singlσ filσ whicΦ contain≤ ß "directoryó ì followeΣ b∙ thσ othe≥ files« Thσ "directoryó i≤ useΣ t∩ separatσ ì thσ files. Iεá orde≥á t∩á simplif∙ librar∙ usagσ oεá thi≤á system¼á thσá "Ló ì commanΣ ma∙ bσ useΣ t∩ "enteró ß library« Wheε thi≤ i≤ done¼ thσ ì systeφ wil∞ promp⌠ fo≥ thσ librar∙ namσ anΣ theε attemp⌠ t∩á opeε ì thσ librar∙ fo≥ use«á Iµ successful¼ al∞ subsequen⌠ File≤ systeφ ì command≤ wil∞ relatσ t∩ thσ file≤ withiε thσ library« Iµ not¼ aε ì appropriatσ erro≥ messagσ wil∞ bσ issued. Iµá yo⌡á arσ alread∙ iε ß library¼á enterinτ "Ló wil∞á causσá thσ ì systeφ t∩ closσ thσ library. è ROS v3.4 User's Guide page 9 <D>irectory of files Thi≤ commanΣ alphabeticall∙ display≤ thσ director∙ oµ files«á Iµ ì yo⌡á arσá iε ß library¼á onl∙ thosσ file≤ iε thσ librar∙ wil∞á bσ ì displayed¼á otherwise¼á thσ sectioε director∙ wil∞ bσá displayed« ì Thσá filσá sizσ wil∞ als∩ bσ displayeΣ accordinτ t∩á thσá curren⌠ ì filesizσ modσ (seσ filesizσ description). <N>ewin list Thi≤á commanΣ displays¼á froφ thσ newes⌠ t∩ thσ oldest¼á recentl∙ ì uploadeΣ file≤ t∩ thσ system« File≤ listeΣ herσ arσ availablσ iε ì the NEWIN files area. <F>ilσsizσ display Initially¼á thσ filσ size≤ iε thσ director∙ displa∙ wil∞ bσ showε ì iεá "kó (102┤ bytes)«á Thσ systeφ caε als∩ displa∙ filσ size≤ iε ì minute≤ anΣ second≤ oµ transfe≥ timσ (baseΣ oε thσ curren⌠á modeφ ì speed)«á EacΦá timσá thi≤ commanΣ i≤ entered¼á thσá systeφá wil∞ ì alternatσ betweeε thesσ tw∩ methods. <R>eceive file using Xmodem protocol (you --> ROS) Thi≤ commanΣ operate≤ iε ß fashioε simila≥ t∩ <S>end¼ bu⌠ i≤ useΣ ì t∩ transfe≥ file≤ froφ you≥ systeφ t∩ this« Thi≤ systeφ wil∞ tr∙ ì t∩á receivσ usinτ botΦ CR├ anΣ checksum«á File≤ wil∞ bσ receiveΣ ì iε ß privatσ areß fo≥ late≥ release¼á iµ appropriate«á Afte≥ thσ ì filσá transfe≥á ha≤ completeΣ successfully¼á RO╙ wil∞ asδá fo≥á ß ì shor⌠ descriptioε oµ thσ file« Thi≤ descriptioε wil∞ bσ showε b∙ ì thσ <N>ewiε commanΣ afte≥ thσ syso≡ review≤ thσ file. Upload≤ arσ alway≤ welcome. <S>end file using Xmodem protocol (ROS --> you) Thσá Xmodeφ protoco∞ i≤ aε essentiall∙ erro≥ freσá filσá transfe≥ ì methoΣá tha⌠á allow≤á tw∩ computer≤ t∩ "discussóá eacΦá blocδá oµ ì character≤á tha⌠á arσá sen⌠ t∩ ensurσá accuratσá transfer«á Mos⌠ ì termina∞á emulato≥á package≤ havσ thσ capabilit∙á oµá usinτá thi≤ ì protocol. Usσ thi≤ commanΣ t∩ senΣ ß filσ froφ thi≤ systeφ t∩ yours« Afte≥ ì enterinτ "S"¼ ente≥ thσ filσ namσ t∩ transfer« Iµ thσ systeφ caε ì finΣ thσ filσ iε thσ curren⌠ area¼á i⌠ wil∞ displa∙ thσá transfe≥ ì timσ anΣ theε thσ messagσ "Read∙ t∩ send..." You≥á emulato≥á packagσ shoulΣ theε bσ se⌠ t∩á receivσá thσá filσ ì usinτ eithe≥ checksuφ o≥ CR├ (preferred). Wheε thσ filσ transfe≥ i≤ complete¼ thσ systeφ wil∞ returε t∩ thσ ì File≤ systeφ prompt. ROS v3.4 User's Guide page 10 <T>ype ASCII or squeezed file (Xon/Xoff supported) Thi≤á commanΣá ma∙ bσ useΣ t∩ displa∙ thσ content≤ oµ tex⌠á file≤ ì eveεá iµá thσá filσá ha≤ beeε squeezeΣ t∩á savσá spacσá anΣá filσ ì transfe≥á time«á Xon/Xofµá ma∙ bσ useΣ a≤ describeΣ iεá thσá Ke∙ ì Entrie≤ section to pause the display. ROS v3.4 User's Guide page 11 UTILITIES SYSTEM Thσá followinτá samplσ men⌡ list≤ thσ command≤ availablσá iεá thσ ì utilitie≤ system« Subsequen⌠ paragraph≤ describσ eacΦ commanΣ iε ì morσ detail. Utility System Menu ================== Functions ================== ==== Other Menus ===== <A>lter user parameters <T>ime and date <F>ile Transfer System <C>hat with sysop ser list <M>essage System <S>tatistics <G>oodbye (logoff) <A>lter user parameters Thi≤á commanΣá allow≤ yo⌡ t∩ se⌠ severa∞ parameter≤ a≤ listeΣá iε ì the following menu. Subsequent paragraphs describe each command. Alter User Parameter Menu ell after prompt on/off <L>ines per page assword change <C>haracters per line <N>ulls sent after C/R <S>hift lock <H>elp level set (0-3) All parameters will be retained from one call to the next. el∞ after prompt on/off Thi≤ commanΣ turn≤ oε anΣ ofµ thσ bel∞ (o≥ beep⌐ useΣ t∩ indicatσ ì tha⌠ thσ systeφ i≤ read∙ fo≥ you≥ input. <C>haracters per line Se⌠ thi≤ paramete≥ t∩ matcΦ thσ actua∞ width¼á iε characters¼á oµ ì thσá displa∙ oµ you≥ terminal«á RO╙ wil∞ forma⌠ mos⌠á outpu⌠á t∩ ì givσ thσ bes⌠ appearance. <H>elp level set (0-3) A⌠ hel≡ level≤ 1-3¼ thσ currentl∙ activσ sub-systeφ wil∞ bσ full∙ ì spelleΣá out¼á e.g«á "Files.óá A⌠ hel≡ leve∞ 0¼á onl∙ thσá firs⌠ ì characte≥ oµ thσ sub-systeφ wil∞ bσ displayed¼ e.g« "F.ó A⌠ hel≡ ì level≤ 2-3¼á thσ systeφ wil∞ reminΣ yo⌡ iε eacΦ promp⌠ tha⌠á hel≡ ì i≤á availablσá b∙ typinτ "?.ó In other words: help level 0 displays shortest possible prompt help level 1 displays full sub-system name help level 2 or 3 displays menu reminder ("?") è ROS v3.4 User's Guide page 12 <L>ines per page T∩ improvσ thσ readabilit∙ oµ lonτ displays¼ RO╙ wil∞ pausσ afte≥ ì ßá specifieΣá numbe≥ oµ lines¼á waitinτ fo≥ ß ke∙ t∩á bσá presseΣ ì beforσá proceeding«á Usσ thi≤ paramete≥ t∩ matcΦ thσá numbe≥á oµ ì line≤ displayeΣ t∩ you≥ screeε size«á Iµ yo⌡ specif∙ "99ó a≤ thσ ì linσá count¼á RO╙ wil∞ no⌠ pause«á A⌠ thi≤ setting¼á thσá norma∞ ì pausσá betweeε message≤ i≤ als∩ suppresseΣ anΣ RO╙ wil∞á continuσ ì unti∞ al∞ message≤ arσ displayeΣ o≥ stopped by ^C. <N>ulls sent after C/R Wheε yo⌡ firs⌠ loggeΣ in¼á yo⌡ se⌠ thσ numbe≥ oµ null≤ yo⌡ needeΣ ì anΣ whethe≥ o≥ no⌠ you≥ systeφ coulΣ displa∙ lowe≥ case« Iµ you≥ ì systeφá change≤á o≥ yo⌡ need t∩ changσ thi≤ valuσ fo≥á an∙á othe≥ ì reason¼ usσ thi≤ command. Null≤á arσá sen⌠ afte≥ ß carriagσ returε t∩ allo≈ timσá fo≥á you≥ ì machinσá t∩á catcΦ u≡ beforσ an∙ printablσ character≤á arσá sent« ì Normall∙á thi≤ valuσ i≤ se⌠ t∩ "0ó fo≥ CR╘á (display⌐á terminals¼ ì anΣá froφ 0-╣ (tr∙ 2⌐ fo≥ hardcop∙ printinτ terminals«á Iµá you≥ ì displa∙á lose≤á character≤á a⌠ thσ beginninτá oµá thσá line¼á tr∙ ì increasinτ thi≤ parameter. assword change Wheεá thi≤á commanΣ i≤ executed¼á thσ systeφ wil∞á asδá fo≥á you≥ ì curren⌠á password«á Iµá thi≤ i≤ entereΣ correctly¼á yo⌡ wil∞á bσ ì askeΣá fo≥ ß ne≈ passworΣ iε ß fashioε simila≥ t∩ wheε yo⌡á firs⌠ ì logged into the system. <S>hift lock Somσá terminal≤ d∩ no⌠ kno≈ wha⌠ t∩ d∩ witΦ lowe≥á casσá letters« ì Iµá yo⌡á responΣ "Y"¼á lowe≥ casσ wil∞ bσ sen⌠ normally«á Iµá yo⌡ ì answe≥á "N"¼á lowe≥ casσ letter≤ wil∞ bσ converteΣ t∩ uppe≥á casσ ì beforσ beinτ sen⌠ t∩ you≥ system. ROS v3.4 User's Guide page 13 <C>ha⌠ witΦ Sysop Durinτ certaiε hours¼ thσ syso≡ ma∙ bσ availablσ chat« Wheε thi≤ ì commanΣ i≤ entered¼á thσ systeφ wil∞ tr∙ t∩ summoε thσ syso≡á (iµ ì durinτ thσ cha⌠ period)«á Iµ thσ syso≡ i≤ available¼ yo⌡ wil∞ bσ ì notifieΣá anΣ ß tw∩ wa∙ converatioε ma∙ begin«á Iµ thσ syso≡á i≤ ì no⌠á availablσá o≥á iµ thσ curren⌠ timσ i≤ outsidσ thσá hour≤á t∩ ì chat¼ yo⌡ wil∞ bσ giveε thσ opportunit∙ t∩ leavσ ß message. <S>tatistics Thi≤á commanΣ display≤ ß ba≥ char⌠ oµ thσ percen⌠ oµ systeφ usagσ ì b∙ hour«á Froφ thσ informatioε oε thi≤ chart¼á yo⌡ caε plaε you≥ ì calls for times when the system is less busy. <T>imσ anΣ date Thi≤ commanΣ wil∞ displa∙ thσ curren⌠ timσ anΣ date¼á thσá amoun⌠ ì oµá timσá spen⌠á oεá thσ systeφ today¼á anΣ thσá amoun⌠á oµá timσ ì remaininτ today. se≥ list Alphabeticall∙ lis⌠ al∞ thσ validateΣ user≤ oε thσ system«á Thi≤ ì commanΣá ma∙ bσ useΣ t∩ checδ thσ spellinτ oµ ß use≥ t∩ whoφá yo⌡ ì wisΦ t∩ senΣ ß message«á Yo⌡ ma∙ star⌠ thσ lis⌠ witΦ an∙ namσ o≥ ì par⌠á oµ namσ b∙ enterinτ onσ o≥ morσ letter≤ a⌠ thσá appropriatσ ì prompt. ROS v3.4 User's Guide page 14 SITUATIONS AND EXAMPLES Thσáá followinτáá describe≤á somσá oµá thσá situation≤áá commonl∙ ì encountered during a session with ROS: Afte≥á thσá usua∞ namσ anΣ passworΣá verification¼á yo⌡á wil∞á bσ ì loggeΣá int∩á thσ "POSTó messagσ area«á A⌠ tha⌠ timσ yo⌡ wil∞á bσ ì notifieΣ oµ an∙ pendinτ persona∞ mai∞ sen⌠ t∩ you«á Message≤ yo⌡ ì sen⌠ whicΦ havσ no⌠ beeε deleteΣ wil∞ als∩ bσ displayed. T∩ changσ thσ messagσ area¼á typσ "C"« Enterinτ "?ó a⌠ thi≤ timσ ì wil∞á displa∙ thσ name≤ anΣ description≤ oµ thσá variou≤á messagσ ì areas«á Iµ RO╙ canno⌠ finΣ thσ areß yo⌡ request¼ i⌠ wil∞ displa∙ ì ß brieµ lis⌠ oµ thσ messagσ areas. I⌠á i≤á importan⌠á t∩á notσ tha⌠ whilσ privatσá message≤á caεá bσ ì retrieveΣ froφ an∙ messagσ area¼ putliπ message≤ caε onl∙ bσ reaΣ ì whilσ iε thσ areß iε whicΦ the∙ arσ filed. Enterinτ ß messagσ i≤ straigh⌠ forwarΣ witΦ prompt≤ fo≥ thσ firs⌠ ì anΣ las⌠ namσ oµ thσ recipient«á Aε empt∙ firs⌠ namσ wil∞ resul⌠ ì iε ß publiπ messagσ addresseΣ t∩ ALL« Iε thi≤ case¼ RO╙ wil∞ no⌠ ì asδ fo≥ thσ las⌠ name« Iµ thσ firs⌠ namσ i≤ SYSOP¼ RO╙ wil∞ als∩ ì no⌠ asδ fo≥ ß las⌠ name. Thσá bulletin≤á caε bσ reaΣ b∙ enterinτá thσá appropriatσá numbe≥ ì calleΣ fo≥ b∙ thσ menu. Thσá utilit∙á systeφ provide≤ severa∞ usefu∞ command≤ fo≥á systeφ ì operatioε anΣ configuration«á Fo≥ example¼á yo⌡ probabl∙ noticeΣ ì tha⌠á afte≥ yo⌡ haΣ calleΣ thσ systeφ once¼á yo⌡ werσá no⌠á askeΣ ì agaiεá thσá numbe≥á oµ null≤ requireΣ no≥ whethe≥á you≥á termina∞ ì coulΣá displa∙á lowe≥á anΣá uppe≥á case«á Thi≤á i≤á becausσá thi≤ ì informatioεá i≤á storeΣ b∙ thσ systeφ alonτ witΦá you≥á namσá anΣ ì password«á However¼ iµ yo⌡ changσ t∩ anothe≥ termina∞ o≥ compute≥ ì yo⌡á ma∙ wan⌠ t∩ changσ thesσ parameters║á jus⌠ typσ "Aó anΣá yo⌡ ì wil∞á bσ prompted«á Password≤ anΣ othe≥ paramte≥ change≤ ma∙ als∩ ì bσ donσ witΦ thi≤ command. Thσá statistic≤ commanΣ wil∞ sho≈ yo⌡ iε ß graphiπ forφ thσá bus∙ ì hour≤ oµ thσ systeφ s∩ yo⌡ caε plaε you≥ calls. Typinτá "Uó no≈ wil∞ takσ yo⌡ int∩ thσ utilit∙ systeφá wherσá yo⌡ ì can try these commands. Afte≥á experimentinτ witΦ thσ utilit∙ commands¼á ente≥ aε "Fóá t∩ ì ente≥ thσ file≤ system«á Oε firs⌠ entry¼ yo⌡ wil∞ bσ loggeΣ int∩ ì thσá LOGI╬á file≤ area«á RO╙ wil∞ displa∙ thσ director∙ oµá thi≤ ì areßá anΣ ß coun⌠ oµ thσ numbe≥ oµ successfu∞ filσ transfer≤á yo⌡ ì havσ performed. Oncσ yo⌡ arσ iε thσ file≤ system¼á RO╙ wil∞ interpre⌠ aε "Fó a≤ ß ì commanΣá t∩á togglσ thσ filesizσ display«á Tr∙á thi≤á commanΣá ß ì couplσ oµ time≤ followeΣ b∙ "Dó t∩ ge⌠ ß director∙ listing. è ROS v3.4 User's Guide page 15 Iµá yo⌡ typσ "N"¼á yo⌡ wil∞ ge⌠ ß lis⌠ oµ thσ ne≈á upload≤á alonτ ì witΦá ßá descriptioε oµ thσ files«á T∩ ge⌠ acces≤ t∩á thesσá ne≈ ì uploads¼á typσá "Có (fo≥ change⌐ anΣ ente≥á "NEWIN"«á UnvalidateΣ ì user≤ d∩ no⌠ normall∙ havσ acces≤ t∩ thσ NEWI╬ section. Thσá file≤á systeφ changσ commanΣ work≤ likσ thσá messagσá systeφ ì changσá commanΣ iε tha⌠ ß "?ó wil∞ producσ ß detaileΣ lis⌠ oµ thσ ì availablσ section≤ anΣ aε invaliΣ namσ wil∞ givσ ß brieµ list. User≤á familia≥ witΦ LU╪ wil∞ recognizσ thσ similarit∙ oµ thσ "Ló ì command« Afte≥ enterinτ "L"¼ thσ systeφ wil∞ asδ fo≥ thσ librar∙ ì namσá whicΦ ma∙ bσ entereΣ witΦ o≥ withou⌠ thσ ".LBRóá extension« ì Whilσá iε thσ librar∙ al∞ oµ thσ filσ systeφ command≤á arσá stil∞ ì operative« Typinτ "Ló ß seconΣ timσ wil∞ closσ thσ library. Yo⌡á ma∙á terminatσ thσ sessioε a⌠ an∙ timσ b∙ typinτ ß "Góá froφ ì an∙á systeφá prompt«á RO╙ wil∞ asδ iµ yo⌡ havσ an∙á comment≤á o≥ ì question≤á fo≥á thσá sysop«á Followinτá this¼á thσá systeφá wil∞ ì disconnect. ROS v3.4 User's Guide page 16