On Mon, Feb 21, 2011 at 11:35:09AM +0100, Jan Kanis wrote: > > set foo first > > echo $foo-(set foo second; echo)-$foo-(set foo third; echo)-$foo > third--third--third > Without the echo's inside the command substitutions the command gives an > empty line as output. Don't know if that's a bug or a feature. Does anyone > know if that's supposed to happen? > > > set foo first > > echo $foo-(set foo second; echo)-$foo-(set foo third)-$foo
one of the interesting things about command substitution is that it can return a list and will be expanded accordingly, consider returning two lines: > echo start-(echo foo; echo bar)-stop start-foo-stop start-bar-stop so naturally, if the command returns 0 lines, the surounding string will be expanded 0 times. greetings, martin. -- cooperative communication with sTeam - caudium, pike, roxen and unix services: debugging, programming, training, linux sysadmin, web development -- pike programmer working in china community.gotpike.org foresight developer (open-steam|caudium).org foresightlinux.org unix sysadmin iaeste.at realss.com Martin Bähr http://www.iaeste.at/~mbaehr/ is.schon.org ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _______________________________________________ Fish-users mailing list Fish-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/fish-users
