








			      ⾯ mini-Howto

		      Alessandro Rubini, rubini@linux.it

			      v2.2, 11ʮһ 1997



				   Abstract

     ļһϵͳʹ termcap 趨һ⾯
     ʹЧ.



1.  

ÿһ BEL Ԫ(ASCII  7)ʱ Linux console 
.ȻԤΪһȷѡ ,ûϲǵĵԷ.
mini-Howto θӦóʽ˵Ҫ BEL
.Ҳν̵ĺ X Ӵϵͳһ BEL
ʱⷢ.עļ󲿷 ̸ console ,趨 X ŷ ׵
catch-all һͼεĻκʹ.

һ޵ĵҵõķ
Ӳ,Լĵûһ.


2.  Spekearectomy

Speakerectomy  ֱӵĽǰ(),
ȵ.  .ֱӵĺ
Ҫκ,ҪĻиĽĿռ.

PC ͨװһ׾лϵ͵ CPU ʱĿ.
һ๤йʱ⿪Ǵδʹ,
ҪѵִϷ  loops
.ҵǲʹл ٶ,ǿʹʹ /Ч
.ʱõļʹһ silent number cruncher
cruncher,źŽһ lenghty
༭.޸Ŀع,ֻҪҪĵ·߷ֿ .

ϥ͵Եӵ,ҵĲ׵ʹ
,ûһʣŵлȥתһ
ͬĹ.ûϺõĽ趨
ǵⷢ,µ.


3.  ÿһ console 趨

 Linux 1.3.43 ʱ, Martin Mares 趨 ̶Ⱥͳ,޸
console.c.ÿһ console Ǳ趨ɫһͬĳ / ĳ̶


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;ɿʹ escape ˳  console 豸.趨Լ ~/.profile
 ~/.loginѡһͬ趨ӵ  console
(ȫһҲ,ҪĻ).

escape ˳:

    ESC-[10;xx] ѡƵú֥.ֵ ӦڡΧ
     21-32766,ֵûб.   `xx' ֵʧ,Ԥֵ
     (750) ,  `ESC-[10].

    ESC-[11;xx] ѡ, milli-seconds ().  ָ
     2,Ԥʹ (125ms).Ȼһ , `xx' ֵʧ (ESC-[11]) Ԥֵ
     ᱻʹ.

ѡ,,һ 50Hz ̶ȿԳһ,ʹ "echo -e
"\\33[10;50]\\33[11;1000]"" with bash (where "-e" ˼ `˽ Escape
˳'.ʹ tcsh ͬ ƴд "echo "\\033[10;50]\\033[11;1000]"".

Ҳ֪ setterm κΰ汾
֧趨,Ľİ汾Ҳú ֧ѡ趨.

ִ Linux-1.3.43 ߽µ,Ҳ escape
˳ͱĶ.ִнϾɵĺ,
Ҫ⾯,ҪĶļŵĲ.


4.   Termcap  Terminfo

 /etc/termcapһֵг terminal capabilities. Ӧóʽʹ
termcap өĻΧƶָ өĻĹ.	tcsh, bash, vi Լ
curses-Ӧóʽʹ termcap Ͽ.

Ͽն˻.  TERM ʱѡȷΪ ,һ
termcap λǱ Ӧóʽʹ.

Ͽڲ,ÿһն˻ʾһ two-letter һʵʵ escape
˳ıʾ ʹȡҪЧ.ڲ֮ͬķָԪ ʹð
(":").һʵ,ü ,Ĵ "bl",ֵͨ "bl=^G".˳
ǻÿӡ control-G Ԫ, ASCII BEL .

 bl , vb Ǳ ֯.Ǳʹ "⾯". vb ͨ term
cap  linux λʧ.

󲿷ִֵӦóʽͳʽʹ terminfo Ͽ  termcap.
Ͽÿһն˻̬ʹһ λ /usr/lib/terminfo;ʹü
Ŀ¼,ÿһն˻͵Ǵĸһ Ŀ¼; Ǹ linux
λ, , /usr/lib/terminfo/l/linux.һ terminfo λ㽫 ``''
termcap ; ̸ tic ʽ˵ҳ.


5.  һ⾯

Լλ vb Լ termcap ,ûѾһ.  Den
nis Henriksen (duke@diku.dk) и termcap λ linux








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(עھɵ distributions λǽ console	):

     :vb=\E7\E[?5h\E[?5l\E[?5h\E[?5l\E[?5h\E[?5l\E[?5h\E[?5l\E8:\


Ѱ backslash ϿǱʹ escape newline.  Dennis' и
(Լ˵):

    ָλ (uustһȫ).

    ı䱳ɫڱ׼ͷǱ׼֮.

    ָָλ.


6.  ʹ console ʧЧ

ǿʹ⾯ console ʹ "bl"  termcap
λͶʹִͬ  "vb" ֮.Ǳ㲻
Ҫ趨ÿһӦóʽ (µ,).
лʹѡҿִ Linux  ܲ.


7.  Ӧóʽⷢ

һȫӦóʽ嵥Ǳָʾȥ ʹ vb λԵǰն˻̬
(ʹһ termcap ϻ terminfo ):

     X ŷ:ʹ "xset b"ѡ bell Ϊ.ָȡֵ
     :С,̶Ⱥͳ. "xset -b" ʹ ȫЧ.趨 X
     ŷӰʾִе Ӧóʽ.

    xterm: xterm תһüĻ
     üź.ʹ,"xset" 趨 . xterm Ԥ
     ü,ʹ "-vb" ѡ  "xterm*visualBell: true"
     İ취תһ ü.˩οü/üź ʱ
     control--left-mouse-button гѡ .ִ X пܵ
     Ҫ.


    tcsh (6.04 ): "set visiblebell".  ָʾǰŵ .cshrc
     ߿ǻʽִ .ֻҪ "unset visible
     bell".ʹκ֪ͨЧ,ʹ "set nobeep" ȡ.

    bash (κ bash,֪): "set bell-style visible" 
     ~/.bashrc.̬ܵ  "û" "ü".

    bash (with readline,ͬ readline Ӧóʽ): "set prefer-visi
     ble-bell"  ~/.inputrc.

    nvi  elvis:  "set flash"  ~/.exrc˵ ":set flash" ʽ (ע
     Ǹð).ʹ⾯Чʹ noflash  flash ĵط.










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    emacs:  "(setq visible-bell t)" ~/.emacs.ǿ "(setq visible-
     bell nil)" ʹûЧ.

    less:ʹ "-q"ʹ⾯, ʹ "-Q"
     ʹκαЧ.Ԥѡ ŽĻ "LESS".

    screen: ִ CtrlA-CtrlG .ı өĻΪ. man page  "CUS
     TOMIZATION" ֮԰װԤֵ.


8.  ĺڰ

ϢÿһӦóʽʹ termcap  terminfo.󲿷Сĳɫ C
ԭʼʹ 'backslash-a' () Ԫ. "alarm" ִбһϵ
ASCII BEL ɶλ. Ӧóʽͨ,עѧ C 
ǸԼĳʽ.ĵǵԿѧѧ ,.

ΨһķʹЩʽĬӦóʽ spekearectomy, Martin Mares
ķʹ escape ˳.











































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				   CONTENTS



1.  ..................................................................... 1

2. Spekearectomy ............................................................ 1

3. ÿһ console 趨 ............................................ 1

4.  Termcap  Terminfo ......................................... 2

5. һ⾯ ......................................................... 2

6. ʹ console ʧЧ ............................................ 3

7. Ӧóʽⷢ ............................................... 3

8. ĺڰ ............................................................. 4





































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