> I'm noticing a difference in behavior between Solaris 9's sh and GNU > bash, and was wondering if this is a bug or a feature.
It's a POSIX requirement. > Using GNU bash, version 3.00.16(1)-release (i386-redhat-linux-gnu). > This command: > > bash -exc 'for x in a b c; do ( false ); echo status is $?; done' > > loops through three items (a b c) and executes a failing command in a > subshell. I was expecting the outer shell to notice that the exit > status from the subshell is nonzero and terminate immediately; instead > it prints "status is 1" and continues looping. According to POSIX, `set -e' only affects the execution of simple commands. A command in a subshell is not a simple command. You can look at the grammar at http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_10 Chet -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ( ``Discere est Dolere'' -- chet ) Live Strong. Chet Ramey, ITS, CWRU [EMAIL PROTECTED] http://tiswww.tis.case.edu/~chet/ _______________________________________________ Bug-bash mailing list Bug-bash@gnu.org http://lists.gnu.org/mailman/listinfo/bug-bash
