> I noticed that bash has changed behaviour regarding subshell handling, > breaking a script of mine. Now a script with -e fails when a subshell > fails whereas it didn't before. I looked at the CHANGES file and > couldn't find anything about this, so I wanted to ask if this change > was intentional or if this is a bug. > > In fact, there's something in CHANGES that might be relevant but the > description isn't really clear at all: > l. Changed behavior of shell when -e option is in effect to reflect > consensus > of Posix shell standardization working group.
This behavior is one of the consequences of the Austin Group's interpretation. Failures of user-specified subshells cause the shell to exit when set -e is in effect. The key piece of the interpretation was to widen the scope of commands that cause the shell to exit without an explicit exception from simple commands to all commands. Chet -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/