On Wed, Feb 18, 2009 at 3:06 PM, Corey Edwards <[email protected]> wrote: > Or rather, the IFS setting was interfering with bash showing you the > contents of IFS. > > [cedwa...@pheasant ~]$ echo foo${IFS}bar > foo bar > [cedwa...@pheasant ~]$ echo "foo${IFS}bar" > foo,bar
Wow, that hadn't occurred to me at all. Even more nakedly: bash$ IFS=, bash$ echo $IFS bash$ echo "$IFS" , So IFS interferes with its own printing because during field-splitting, bash filters IFS itself from input commands before processing those commands. Double-quoting suppresses the field-splitting behavior, which makes the variable's value visible in the echo command. Very interesting. Chris /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
