´äº¯ ³Ê¹« °¨»çÇÕ´Ï´Ù..
Çåµ¥ ·Î±×ÀÎ ÇÑÈÄ ÇÑÅÒÀ» ¿¾î¼ tty¶ó°í ÀÔ·ÂÇϸé
/dev/pts/1¹ø ºÎÅÍ ¶ß±â ½ÃÀÛÇÏ°í /dev/pts/0Àº ÀÚµ¿ÀûÀ¸·Î »ý¼ºÀÌ
µÇ¾î Àִµ¥ /dev/pts/0Àº ¾î¶² ÀÛ¿ëÀ» Çϴ°ǰ¡¿ä...?
±×¸®°í ¿©·¯°³ÀÇ ÇÑÅÒ Ã¢À» ¿¾ú´Ù°¡ ´ÝÀºÈÄ last root·Î È®ÀÎÇغ¸¸é
/dev/pts8ÀÌ ¿©ÀüÈ÷ ·Î±×ÀÎÀÌ´Ù ¶ó°í ¸Þ¼¼Áö°¡ ¶ß´Âµ¥ ÀÌ·±°Ç Á¤»ó
Àΰ¡¿ä...? ´Ã °ªÁø Á¶¾ð¿¡ °¨»çµå¸³´Ï´Ù..
[»êÀÌ]´ÔÀÌ ³²±â½Å ±Û:
>[°¿ë]´ÔÀÌ ³²±â½Å ±Û:
>
>>´Ã ÁÁÀº ´äº¯¿¡ °¨»ç µå¸³´Ï´Ù..
>>Á» ±âº»ÀûÀÎ Áú¹®ÀÏÁö ¸ð¸£Áö¸¸
>>last root ÀÌ·± ½ÄÀ¸·Î ·Î±×ÀÎ/¾Æ¿ô ½Ã°£À» üũÇϵµ·Ï
>>¸í·ÉÀ» ³»¸®¸é pts/0 pts/1 ÀÌ·± ½ÄÀ¸·Î ³ª¿À´Âµ¥
>>Á¤È®ÇÏ°Ô pts/¼ýÀÚ ¸¦ ¾î¶²½ÄÀ¸·Î ÀÌÇØÇØ¾ß Çϳª¿ä..
>>Á¶¾ð ºÎŹµå¸³´Ï´Ù..
>
>========================================
>
>TTY(teletypewriter) Ç׸ñÀº ¸®´ª½º µð¹ÙÀ̽º µå¶óÀ̺êÁß¿¡¼ ÄܼÖÀ̳ª Å͹̳ÎÀ»
ÀǹÌÇÕ´Ï´Ù.
>
>- Äָܼðµå
>¸ð´ÏÅÍ, Å°º¸µå·Î Á÷Á¢ º»Ã¼¿¡ ¿¬°áµÈ ¸ðµå¸¦ ¸»ÇÏ°í,
>2¹ø° ÄֺܼÎÅÍ°¡ °¡»óÄܼÖÀÔ´Ï´Ù. µÎ¹ø° ¸ð´ÏÅÍ, Å°º¸µå´Â
>½ÇÁ¦·Î Á¸ÀçÇÏÁö ¾ÊÀ¸´Ï±ñ '°¡»ó(pseudo)'À̶ó´Â
¸»ÀÌ ºÙ½À´Ï´Ù.
>Ctrl + Alt + F2 ¸¦ ´©¸£¸é µÎ¹ø° °¡»óÄַܼΠ°©´Ï´Ù.
>
>tty0, tty1, tty2 ...
>
>ÀÌ·±½ÄÀ¸·Î ³ª¿µÇ°í »ç¿ë°¡´ÉÇÑ ÄܼÖÀº 6¹ø±îÁö ÀÖ½À´Ï´Ù.
>7¹ø ºÎÅÍ´Â X-À©µµ¸¦ ¸»ÇÏ°í, À̶§´Â ttyN ÀÌ ¾Æ´Ñ pts/N À¸·Î
>½ÃÀ۵˴ϴÙ.(/etc/inittab
ÆÄÀÏ¿¡ Á¦ÇÑÀ» µÑ ¼ö ÀÖÀ½)
>
>(Âü°í ttyS0, ttyS1, ... ÀÌ°ÍÀº ½Ã¸®¾ó ÄܼÖÀ» ÀǹÌÇÔ)
>
>
>- Å͹̳θðµå
>
>ÀÌ°ÍÀº º»Ã¼¿¡ LAN À¸·Î ¿¬°áµÈ ¸ðµå¸¦ ¸»Çϸç, ¿ø°ÝÁ¢¼ÓÀ»
>ÀǹÌÇÕ´Ï´Ù.PTY(pseudo-terminal,
°¡»óÅ͹̳Î)
>
>- PTS
>
>ÀÌ°ÍÀº Unix98 PTYs ¸¦ ¸»ÇÕ´Ï´Ù. ¸®´ª½º Ä¿³Î ¿É¼Ç¿¡,
>/dev/pts file system for Unix98 PTYs ÀÌ ºÎºÐÀ» ÀǹÌÇÏ°í,
>ÆÄÀÏ ½Ã½ºÅÛÀÔ´Ï´Ù. ¶ÇÇÑ X-window ¿¡¼µµ pts/N ÀÔ´Ï´Ù.
>
>...
>
>shell> tty
>/dev/pts/3
>
>ÇöÀç Àú °°Àº °æ¿ì´Â /dev/pts/3 ¹øÀ» »ç¿ëÇÏ°í Àֳ׿ä.
>
>/dev/pts/N Çü½ÄÀ¸·Î ·Î±×ÀÎÇÒ¶§ ¸¶´Ù ¼øÂ÷ÀûÀ¸·Î ¸¸µé¾îÁý´Ï´Ù.
>
>devices
> |
> |-- ...
> |-- TTY (teletypewriter, ÄÜ¼Ö or Å͹̳Î)
> | |
> | |-- PTY (pseudo-terminal, Å͹̳Î)
> | |
> | `-- PTS (Unix98 PTYs, Å͹̳Î, X-window)
> |
> `-- ...
>
>À§°èµµ°¡ ¸Â´ÂÁö ¸ð¸£°ÚÁö¸¸ ´ëÃæ ÀÌ·± °èÃþÀÔ´Ï´Ù
>
>Âü°í)
>script, tee, /dev/pts µîµîÀ» Á¶ÇÕÇϸé Àç¹ÌÀÖ´Â Çö»ó(?)ÀÌ
>ÀϾ´Ï´Ù.
>
>ex)
>
>shell> tty
>/dev/pts/1
>
>shell> who
>san2 pts/1 ...
>san2 pts/2 ...
>
>shell> script -a | tee /dev/pts/2
>shell> ls
>...(also append to /dev/pts/2)
>...
>shell> exit (script Á¾·á)
========================================
|