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tutorials:node7.html [2011/04/30 20:29] – [6.2.2 COM Session Example] georgtutorials:node7.html [2011/04/30 20:33] (current) – georg
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 Here's why the steps in Table 6.3 work: Here's why the steps in Table 6.3 work:
  
-   1. If com is waiting for you to type a command, then you could type the command anyway, but you type Space, which gets you a prompt (com isn't interpreting commands). Then you type Return, which ends that prompt. So now com is waiting for a command again. So the Space Bar & Return sequence was unnecessary, but it did not harm. (People in the room won't even see it because if you try to ``say'' an empty line, com doesn't print anything.) +1. If com is waiting for you to type a command, then you could type the command anyway, but you type Space, which gets you a prompt (com isn't interpreting commands). Then you type Return, which ends that prompt. So now com is waiting for a command again. So the Space Bar & Return sequence was unnecessary, but it did not harm. (People in the room won't even see it because if you try to ''say'' an empty line, com doesn't print anything.) 
-   2. If com has prompted you & is not interpreting your commands, the Space Bar won't do anything useful, but the Return key will end that prompt. If you had mistakenly typed Return earlier & com was waiting for you to say something into the room, the Space Bar will do nothing, but the Return will end that mode, & com will now wait for you to type a command.. (If you had typed things before the Space Bar, you will ``say'' them into the room.)+ 
 +2. If com has prompted you & is not interpreting your commands, the Space Bar won't do anything useful, but the Return key will end that prompt. If you had mistakenly typed Return earlier & com was waiting for you to say something into the room, the Space Bar will do nothing, but the Return will end that mode, & com will now wait for you to type a command.. (If you had typed things before the Space Bar, you will ''say'' them into the room.)
  
 ====  6.2.4 COM History ====  ====  6.2.4 COM History ==== 
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 From a section's menu, prompts you for a message number (which you must enter exactly, including leading zeros). Then it prints the message & all replies to your screen.  From a section's menu, prompts you for a message number (which you must enter exactly, including leading zeros). Then it prints the message & all replies to your screen. 
          
-q+''q''
  
 Quits the bulletin board.  Quits the bulletin board. 
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 +[[tutorials:unix|back]]
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