tB then wait. - plan9port - [fork] Plan 9 from user space
  HTML git clone git://src.adamsgaard.dk/plan9port
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit 93fb47050c80d20d668035c7d1b89d610c1aa7d8
   DIR parent b9b5cea4eda1c011cfc2e18c8b89987d4298cb7c
  HTML Author: rsc <devnull@localhost>
       Date:   Sat, 11 Oct 2003 03:58:19 +0000
       
       B then wait.
       
       Diffstat:
         A bin/Bwait                           |      17 +++++++++++++++++
       
       1 file changed, 17 insertions(+), 0 deletions(-)
       ---
   DIR diff --git a/bin/Bwait b/bin/Bwait
       t@@ -0,0 +1,17 @@
       +#!/bin/sh
       +
       +# run B but then wait for the file to change.
       +# great to set as $EDITOR.
       +# the notion of a file changing is a little weak.
       +
       +stat=`ls -l $1`
       +B "$@"
       +while true
       +do
       +        nstat=`ls -l $1`
       +        if [ "$stat" eq "$nstat" ]
       +        then
       +                exit
       +        fi
       +done
       +