Hello, I have some very basic questions about the above topic. First, I read from various sources that backticks (`command`) are basically deprecated, with $(command) the preferred option (I may be a little loose with this definition). man ksh even alludes to this:
<snip> ``' introduces an old-style command substitution <snip> Is there ANY differnece between the behavior of these, or is it just that the newer style is preferred for readability? Second, again in man ksh, I read: Note that $(< foo) has the same effect as $(cat foo), but it is carried out more efficiently because no process is started. When googling for similar examples, I always see the 'cat foo' example used. So is this form simply a shorthand for 'cat somefile', and not any other command (for example an awk or sed command)? I view myself as a guest caveman among the rest of you who probably know this stuff as second nature, and am always grateful for your replies (even when I get yelled at). Thanks! -Scott
