On Thu, Sep 12, 2002 at 03:15:25PM +0530, Dr. Sharukh K. R. Pavri. wrote:
> I found this in someone's email sig. I wrote to him asking
> what it is but did not recieva a reply.
>
Very unlikely you will get a response ... he probably wants
your first-hand expressions, and abuses !
>
> bash$ :(){ :|:&};:
>
> could somebody please enlighten me *before* I run it at the
> bash prompt ?
>
Not quite sure, but the expected output will be a "locked" up
console, which will not accept any further keystrokes ... May
have to do a 3-finger salute or even a reset drill !
Components here are:
a) The colon ":", which has no effect beyond expanding args
and performing any specified redirections. In this case a
null arg state is presented "()".
b) This is followed up by a { list } or group command which
is semi-colon terminated, essentially does nothing more
than placing the ":|:" as a background process as a recu-
rsive measure (&). I can't decipher this ":|:" ....
The likely result is a lot of [1] 2456 [2] 2457 etc type of
self terminating background processes being thrown up so
fast that even ^C or Ctrl-Alt-Del may not work ...
That is what I make of it. Not very sure though ....
Anybody tried it ?
Bish
--
:
####[ GNU/Linux One Stanza Tip (LOST) ]#######################
Sub : bash keystrokes (#1) LOST #334
C-a : beginning of line C = Ctrl key
C-e : end of line M = Meta/ Alt key
M-b : backward-word
M-f : forward-word
####<[EMAIL PROTECTED]>######################################
:
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