On 2013-05-07 14:23:47 +0000, Thorsten Glaser wrote: > Shells suitable for /bin/sh are currently bash, dash, mksh.
I forgot about that (partly because of workarounds), but due to the SIGINT problem, I think that *currently*, among these 3 shells, bash is the most suitable one, and mksh is a bit better than dash. Indeed /bin/sh is used by system(), meaning that in particular, it is often executed to run interactive programs, some of which trapping SIGINT. If the shell doesn't implement WCE[*], one may get spurious failures (e.g. when Ctrl-G is typed in some versions of Emacs, Ctrl-C in gdb, etc.). [*] http://www.cons.org/cracauer/sigint.html AFAIK, only bash and ksh93 implement WCE. And mksh has an optimization so than when the "mksh -c" string consists of only one command, the problem doesn't occur (because in such a case, the shell does not fork, but exec's the command, so that the shell is no longer involved when the signal is sent). > I believe posh can be made suitable with a bit of hacking it > (e.g. adding fixes from mksh) and coreutils moving /usr/bin/printf > to /bin/printf (best way out of the Md issue, really). But posh doesn't implement WCE either. My bug reports: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683671 for dash http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=708633 for posh http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=708634 for mksh -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130517132350.ga10...@ypig.lip.ens-lyon.fr