To turn off that annoying flash (that lags your session) in vim:
In
.vimrc
set vb t_vb= " Turn off visual bell
General beeps...
In
.inputrc
set bell-style none
In
~/.bash_profile (or /etc/profile or .bashrc or somewhere)
setterm -blength 0
In X Window:
$ xset b off
To turn it on again use:
$ xset b on
For less
In
~/.bash_profile:
export LESS="-q"
