On 8/22/2017 11:18 AM, Stephen John Smoogen wrote: > On 22 August 2017 at 10:47, Eliot Moss <m...@cs.umass.edu> wrote: >> On 8/22/2017 10:31 AM, Stephen John Smoogen wrote: >> >>> I replicated this problem on my system and found that the fix is to add a >>> >>> shopt -s expand_aliases >>> >>> at the top of the script. I don't know why the option is turned off >>> when running scripts versus in a plain script but that seems to be a >>> default in Cygwin. >> >> >> It's a *bash* default - it has nothing to do with Cygwin as distinct >> from other bash installations. If you had a different experience >> elsewhere, it could be that the default was overridden in some system >> wide bashrc file - but that strikes me as unlikely. I suspect that >> this is done as a security measure, to prevent an alias from introducing >> a surprise. >> > > I checked on CentOS and there is no shopt option set in any of the > /etc/ files. It must be a compiled in default of some sort as EL6 and > EL7 both work without an explicit `shopt -s expand_aliases`. I then > tried on an Ubuntu 16.04 system and it works without the `shopt -s > expand_aliases` also. > > I didn't have access to anything else at the moment so I can't say > which other systems might actually follow the default other than > Cygwin at the moment.
Are you talking bash as sh or bash as bash? Bash as sh will expand those aliases. But you should study http://tldp.org/LDP/abs/html/aliases.html for all your scripts. Are there environment variables that could affect the outcome? -- cyg Simple -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple