pfeiffer@rsch.WISC.EDU (Phil Pfeiffer) (09/17/86)
Sorry, I mistyped an important character in the original request.
Let's try again.
+
+ The systems in question are 4.3BSD Unix and Ultrix.
+ The problem is as follows:
+
+
+ Assume that file "nxf" does not exist.
+ Assume that the following lines are in shell script 'cmd':
+
+ #!/bin/csh
+ rm nxf >& cmd_out
+ echo $status > cmd_stat
+
+
+ Assume the following lines are in shell script 'master':
+
+ #!( doesn't matter whether master is executed using "/bin/sh" or "/bin/csh" )
+ cmd
+
+ 'master', as is, executes just fine. The "cannot find file" error message and
+ error status values are written into cmd_out and cmd_stat, respectively.
+
Let me clarify this: the "cmd_stat" file contains a "1".
so far, all well and good.
+
+ Assume the following lines are in shell script 'bgmaster':
+
+ #!( doesn't matter whether master is executed using "/bin/sh" or "/bin/csh" )
+ cmd &
+ wait
+
+ Now "cmd_out" is empty on return, and "cmd_stat=1". Why?
^^^^^^^^^^
This phrase in the original message should have asserted that "cmd_stat=0".
Have I failed to understand something about /bin/csh background processing?
--
-- Phil Pfeiffer
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