$ xset -b

$ xset q
bell percent: 0 bell pitch: 400 bell duration: 100

• in JDS
  
  Run command

  $ gnome-session-properties 
  

  shortcut of which normally is at Launch -> Preferences -> Desktop Preferences -> Session,
  and add "xset -b" to Startup Programs.
  
  Also in JDS it's possible to switch the bell off at X windows manager level,
  go Launch -> Preferences -> Desktop Preferences -> Sound -> System Bell or call

  $ gnome-sound-properties
  



• in CDE
  
  Basically "xset -b" can be added to ~/.dt/sessions/sessionetc file,
  refer to dtsession(1X) - "Executing Additional Commands at Session Startup" section,
  however normally dtsession itself remembers "bell" settings:

  $ cat ~/.dt/sessions/current/dt.settings
  Dtsession*BellPercent:  0
  

  Alternatively to "xset b" command, CDE has graphical tool:

  $ dtaction SetDtBeep
  

  which is basically a call of /usr/dt/bin/dtstyle, as far as:

  $ dttypes -db ACTION -w rec_name SetDtBeep
  =============== SetDtBeep ===============
  loaded from localhost:/usr/dt/appconfig/types/C/dt.dt
          LABEL : Beep Style Manager
          ICON :  DtBeep
          TYPE :  COMMAND
          WINDOW_TYPE :   NO_STDIO
          EXEC_STRING :   /usr/dt/bin/dtstyle -beep
          ARG_COUNT :     0
  



• in Ice WM
  
  "xset -b" can be put into ~/.icewm/startup script file (should have execute permission).

• get current terminal

  # echo $TERM
  sun
  

• get terminfo w.r.t. "sun" terminal

  # infocmp >terminfo-sun
  

• remove "bel=^G" from terminfo-sun file and then compile it

  # tic terminfo-sun
  

• check terminfo just applied

  # infocmp
      # Reconstructed via infocmp from file: /usr/share/lib/terminfo/s/sun
      sun|sun-color|Sun Microsystems Workstation console,
          am, km, mir, msgr, xon,
          cols#80, lines#34,
          bold=\E[1m, clear=\f, cr=\r, cub1=\b, cud1=\n,
          cuf1=\E[C, cup=\E[%i%p1%d;%p2%dH, cuu1=\E[A,
          dch=\E[%p1%dP, dch1=\E[P, dl=\E[%p1%dM, dl1=\E[M,
          ed=\E[J, el=\E[K, ht=\t, ich=\E[%p1%d@, ich1=\E[@,
          il=\E[%p1%dL, il1=\E[L, ind=\n, kcub1=\E[D,
          kcud1=\E[B, kcuf1=\E[C, kcuu1=\E[A, kf1=\E[224z,
          kf2=\E[225z, kf3=\E[226z, kf4=\E[227z, kf5=\E[228z,
          kf6=\E[229z, kf7=\E[230z, kf8=\E[231z, kf9=\E[232z,
          rev=\E[7m, rmso=\E[m, rmul=\E[m, rs2=\E[s, sgr0=\E[m,
          smso=\E[7m, smul=\E[4m
  

• no "bel" capability, however weird bell rings anyway ...

• bash
  
  Put "set bell-style none" to ~/.inputrc file


• vim
  
  Put "set vb t_vb=" into ~/.vimrc


• less
  
  Call less with "-q" option, or type "-q" inside less, getting "Ring the bell for errors but not at eof/bof" message.
  For example it may be useful to have the following in a profile, to keep quiet man and etc. programs uses pager:

  alias less='less -q'
  PAGER='less -iq'
  

• mutt
  
  Put "unset beep" command to ~/.muttrc

# mdb -kw
Loading modules: [ unix krtld genunix specfs dtrace 
	cpu.AuthenticAMD.15 uppc pcplusmp ufs ip sctp 
	usba uhci s1394 nca lofs zfs random nfs audiosup 
	sppp crypto ptm ipc md cpc fcip fctl fcp logindmux ]
>

> beep_params::print -atd
fffffffffbc00000 struct beep_params [3] [
    {
        fffffffffbc00000 enum beep_type type = 1 (BEEP_CONSOLE)
        fffffffffbc00004 int frequency = 0t900
        fffffffffbc00008 int duration = 0t200
    }
    {
        fffffffffbc0000c enum beep_type type = 2 (BEEP_TYPE4)
        fffffffffbc00010 int frequency = 0t2000
        fffffffffbc00014 int duration = 0
    }
    {
        fffffffffbc00018 enum beep_type type = 0 (BEEP_DEFAULT)
        fffffffffbc0001c int frequency = 0t1000
        fffffffffbc00020 int duration = 0t200
    }
]

> beep_params+4/W-1
beep_params+4:  0x384  = 0xffffffff
> beep_params+8/W0
beep_params+8:  0xc8   = 0x00000000

> ::formats ! grep "^W"
W - write default radix unsigned int (4 bytes)

> $q

# dumpadm 
      Dump content: kernel pages
       Dump device: /dev/dsk/c1d0s0 (swap)
Savecore directory: /var/crash/localhost
  Savecore enabled: yes

# cd /var/crash/localhost
# ls
bounds  unix.0  vmcore.0
# mdb 0
Loading modules: ...
> 

> $c
beep_frequency+0x13(0)
beep+0x74(1)
tem_bell+0x21(ffffffff80401c78, 0)
...

> beep_frequency+0x13::dis
beep_frequency:                 pushq  %rbp
beep_frequency+1:               movq   %rsp,%rbp
beep_frequency+4:               subq   $0x18,%rsp
beep_frequency+8:               pushq  %rbx
beep_frequency+9:               movq   %rdi,-0x8(%rbp)
beep_frequency+0xd:             movl   $0x1234dc,%eax
beep_frequency+0x12:            cltd   
beep_frequency+0x13:            idivl  %edi

> beep::dis
...
beep+0x69:                      movl   0x4(%r14),%edi
beep+0x6d:                      xorl   %eax,%eax
beep+0x6f:                      call   +0x9c <beep_frequency>
...