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>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)
|