<html> <head> <style></style> </head> <body class='hmmessage'> Hi James<div> </div><div>Probably bad wording on my behalf. Yes it was set prior to the configure being called.</div><div>My exact entries are:</div><div> </div><div>CFLAGS=-DSHELL='\"/bin/bash\"' ./configure --prefix=/usr --exec-prefix= --sysconfdir=/etc</div><div>make</div><div>make install</div><div> </div><div>I have also exported the CFLAGS prior to the above and simply done configure, make and make install steps</div><div>but both yield the same results as shown previously, ie that the script errors with unexpected token</div><div>which implies that it is still running it as sh.</div><div> </div><div>So so far it has only been the here document process working for me :(</div><div> </div><div>cheers</div><div>grail > Date: Tue, 14 Jun 2011 09:39:51 +0100 > From: james.hunt@canonical.com > To: grail69@hotmail.com > CC: upstart-devel@lists.ubuntu.com > Subject: Re: Process substitution into loop > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 14/06/11 04:49, Grail Dane wrote: > > Well, I can confirm that setting the interpreter to /bin/sh does not support process substitution as > > I have run the following script > > under both: > > > > while read -r DEVICE > > do > > echo ip link set dev $DEVICE up > > done< <(ip link | awk '/^[0-9]/ && gsub(/:/,""){print $2}') > > > > Under bash I get: > > > > ip link set dev lo up > > ip link set dev eth0 up > > ip link set dev sit0 up > > > > Under sh I get: > > > > line 6: syntax error near unexpected token `<' > > line 6: `done< <(ip link | awk '/^[0-9]/ && gsub(/:/,""){print $2}')' > > > > I also have not been able to find a way to successfully implement the Cookbook option to change the > > default shell. > > To this end I mean that if I add the CFLAGS option prior to compiling, > Hi Grail, > > You need to set CFLAGS prior to running *configure* (before the compile). So, you will need to do: > > export CFLAGS=... > ./configure ... > make > > Regards, > > James. > > > the output once running: > > > > start network-interfaces > > > > Yields the same type of error as the script above: > > > > /proc/self/fd/10: line 6: syntax error near unexpected token `<' > > init: network-interfaces main process (27800) terminated with status 2 > > start: Job failed to start > > > > I can confirm that the here document idea does work so I am left with the fact that the CFLAGS option > > was some how no interpreted :( > > > > Once compiled and installed is there any way to check what shell it thinks is the default? > > > > Cheers > > grail > > > > ---------------------------------------------------------------------------------------------------- > > Date: Mon, 13 Jun 2011 18:15:20 -0700 > > Subject: Re: FW: Process substitution into loop > > From: scott@netsplit.com > > To: grail69@hotmail.com > > CC: upstart-devel@lists.ubuntu.com > > > > Note the phrase *startup behaviour* in the paragraph - bash still supports bashisms in its scripts > > when invoked as sh (after all, that's where the entire historical problem with them comes from) > > > > On Mon, Jun 13, 2011 at 4:56 PM, Grail Dane <grail69@hotmail.com <mailto:grail69@hotmail.com>> wrote: > > > > Hi James > > > > Thanks very much for the reply. As you can probably guess the typo is in the email but not in > > the actual script. I did further testing and as per the bash install instructions: > > > > *sh* > > > > > > > > A symlink to the *bash* program; when invoked as *sh*, *bash* tries to mimic the startup > > behavior of historical versions of *sh* as closely as possible, while conforming to the POSIX > > standard as well > > > > > > > > This would indicate that it is a bash builtin feature to use only POSIX compliant options. > > So from the Cookbook you may need to edit the following from the section you pointed me to: > > > > If you wish to change this, you can either make /bin/sh a symbolic link to your chosen shell > > > > As this does not work as expected in this case and it may be similar for other shells to. > > > > I will try the workaround of adding it as the default shell in the build and let you know how it > > goes :) > > > > Cheers > > grail > > > > > Date: Fri, 10 Jun 2011 11:22:12 +0100 > > > From: james.hunt@ubuntu.com <mailto:james.hunt@ubuntu.com> > > > > > To: grail69@hotmail.com <mailto:grail69@hotmail.com> > > > CC: upstart-devel@lists.ubuntu.com <mailto:upstart-devel@lists.ubuntu.com> > > > Subject: Re: Process substitution into loop > > > > > > Hi Grail, > > > > > > On 10/06/11 05:46, Grail Dane wrote: > > > > > > > > > > > >> Date: Thu, 9 Jun 2011 21:05:45 -0700 > > > >> From: steve.langasek@ubuntu.com <mailto:steve.langasek@ubuntu.com> > > > >> To: grail69@hotmail.com <mailto:grail69@hotmail.com> > > > >> CC: upstart-devel@lists.ubuntu.com <mailto:upstart-devel@lists.ubuntu.com> > > > >> Subject: Re: Process substitution into loop > > > >> > > > >> On Fri, Jun 10, 2011 at 03:53:15AM +0000, Grail Dane wrote: > > > >> > Just wondering, as I can't find by googling, if it is at all possible to > > > >> > do a processsubstitution into a while loop within an upstart script? > > > >> > > > >> > Example: > > > >> > while read -r DEVICE > > > >> > do > > > >> > ip link set dev $DEVICE up > > > >> > done< <(ip link | awk '/^[0-9]/ && !/UP/ && gsub(/:/,""){print $2}) > > > You have an error in your script: it is missing the closing tick (see below). > > > > > > >> > > > >> > When issuing the start command on the script I get: > > > >> > /proc/self/fd/10: line 6: syntax error near unexpected '<'init: > > > >> > network-interfaces main process (1367) terminated with status 2start: Job > > > >> > failed to start Would appreciated if someone would identify if i have done > > > >> > something wrong or if this not a supported feature? > > > >> > > > >> The <() syntax is not part of the POSIX standard, it's a bash extension. > > > >> Upstart uses /bin/sh to interpret scripts, as is customary; chances are > > > >> you're running on a system where /bin/sh is not bash, and as a result this > > > > > > > > Actually /bin/sh is a symbolic link to bash on my system. Is there anyway to have bash as the > > > > shell used? > > > > > > script > > > /bin/bash <<EOT > > > while read -r DEVICE > > > do > > > echo "DEBUG: ip link set dev $DEVICE up" > /tmp/grail.log > > > done < <(ip link | awk '/^[0-9]/ && !/UP/ && gsub(/:/,""){print $2}') > > > EOT > > > end script > > > > > > Also, just for you :)... > > > > > > http://upstart.ubuntu.com/cookbook/#changing-the-default-shell > > > > > > Regards, > > > > > > James. > > > > > > > > > > >> syntax is not supported. > > > >> > > > >> A supported syntax would be: > > > >> > > > >> ip link | awk '/^[0-9]/ && !/UP/ && gsub(/:/,""){print $2}' | > > > >> while read -r DEVICE > > > >> do > > > >> ip link set dev $DEVICE up > > > >> done > > > >> > > > >> -- > > > >> Steve Langasek Give me a lever long enough and a Free OS > > > >> Debian Developer to set it on, and I can move the world. > > > >> Ubuntu Developer http://www.debian.org/ > > > >> slangasek@ubuntu.com <mailto:slangasek@ubuntu.com> vorlon@debian.org <mailto:vorlon@debian.org> > > > > > > > > > > > -- > > upstart-devel mailing list > > upstart-devel@lists.ubuntu.com <mailto:upstart-devel@lists.ubuntu.com> > > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/upstart-devel > > > > > > > - -- > Cheers, > > James. > - -- > James Hunt > ____________________________________ > Ubuntu Foundations Team, Canonical. > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.11 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAk33HlMACgkQYBWEaHcQG9ctAwCfaJrG/Vyf4robYFV5lCwhzGwq > Sr0AnAwGL8UWMT9CC++/Zzh4ilFHCKmc > =kNrb > -----END PGP SIGNATURE----- </div> </body> </html>