so-called-hang-on-exit

[Jim Knoble]

Circa 2002-08-07 01:54:46 -0700 dixit Frank Cusack:

: Hence my earlier question, what does 'ssh -t 0 "yes & exit"' do on OpenBSD?

Here's what happens here:

  $ uname -srvm
  OpenBSD 3.1 GENERIC#1 i386
  $ ssh -t localhost 'yes & exit'
  $ ssh -t localhost 'yes & sleep 1; exit'
  y
  y
  y
  [etc., for 1 second]
  $ 

Note, though, that the same thing happens on Linux with bash-2.x's
'huponexit' option set:

  $ uname -srvm
  Linux 2.2.20-1jmk.rh62.ow1 #1 Mon Nov 5 17:38:17 EST 2001 i586
  $ ssh localhost 'shopt |grep -i hup'
  huponexit       on
  $ ssh -t localhost 'yes & exit'
  $ ssh -t localhost 'yes & sleep 1; exit'
  y
  y
  y
  [etc., for 1 second]
  $ 

-- 
jim knoble  |  jmknoble at pobox.com  |  http://www.pobox.com/~jmknoble/
(GnuPG fingerprint: 31C4:8AAC:F24E:A70C:4000::BBF4:289F:EAA8:1381:1491)
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