Rats! You are right. Thank you so much Duncan and Eliot (both for the information and the tactful tone :-) ).
I will review shopt - I had been only looking at "set" for relevant options. > -----Original Message----- > From: cygwin-ow...@cygwin.com [mailto:cygwin-ow...@cygwin.com] On > Behalf Of Duncan Roe > Sent: August-21-17 6:56 PM > To: cygwin@cygwin.com > Subject: Re: alias appears to not work inside a called bash scripty > > On Mon, Aug 21, 2017 at 06:30:15PM -0400, Michel LaBarre wrote: > > Hello all, > > > > I have a 4 line bash script: > > #!/bin/bash > > alias nawk=gawk > > alias nawk > > nawk 'BEGIN {FS="^"} ; (length($0) > maxline) { maxline = length($0) ; > > line=$0} ; END{print maxline, line}' $* > > > > > > When I run the script I see: > > alias nawk='gawk' > > /cygdrive/c/mybin/maxline/: line 4: nawk: command not found > > > > It looks like the alias is properly defined but it does not appear to take > > effect. > > > > Same thing happens if I alias to awk instead of qawk. > > > > Same thing happens if I define the alias in .bashrc (I include an echo in > > bashrc to confirm that it is being invoked). > > > > My .bashrc is not likely a factor - I empty it and the result is the same. > > No carriage returns in the script or .bashrc. > > > > I have updated everything August 5th using setup and letting all "Pending" > > pkgs update so I believe I am up to date. > > > > The funny thing is that it works ok from an interactive session, whether the > > alias is explicitly defined in the session or in .bashrc. > > > > Thank you in advance for any insights. > > > > BTW - I just re-subscribed to cygwin 4-5 hours ago and have not seen any > > mail which seems unusual based on past experience. > > > > Michel LaBarre > > 613-692-0507 > > > > > This is expected behaviour. "man bash" gibes > > " Aliases are not expanded when the shell is not interactive, unless the > expand_aliases shell option is set using shopt (see the description of shopt > under SHELL BUILTIN COMMANDS below). > > Cheers ... Duncan. > > -- > 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 -- 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
