Chris wrote: > Dear bash experts, > > Observe: > > bash$ echo $(echo "1:2") > 1:2 > > bash$ echo $(echo "1,2") > 1 2 > > There's no comma in the output of the second command; it's been > replaced by a space. > > Which shell expansion mechanism replaces the comma with a space? > > It looks kind of like brace expansion, but there are no braces. > > The man page description of command-substitution mentions only > post-substitution word-splitting, but that depends on IFS (which in my > case is unset), so I presume the comma is not being used as a > potential word separator. >
Works for me $ echo $(echo "1:2") 1:2 $ echo $(echo "1,2") 1,2 $ bash --version GNU bash, version 3.2.17(1)-release (i386-apple-darwin9.0) Copyright (C) 2005 Free Software Foundation, Inc. also $ echo $(echo "1,2") 1,2 $ bash --version GNU bash, version 3.1.17(1)-release (i486-pc-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. -- Hans Fugal ; http://hans.fugal.net There's nothing remarkable about it. All one has to do is hit the right keys at the right time and the instrument plays itself. -- Johann Sebastian Bach /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
