On Mon, Nov 30, 2009 at 12:35:32PM -0500, Mike Frysinger wrote: > On Monday 30 November 2009 12:12:17 Greg Wooledge wrote: > > On Mon, Nov 30, 2009 at 11:15:38AM -0500, Mike Frysinger wrote: > > > On Monday 30 November 2009 06:12:35 Gerard wrote: > > > > I need to know if " $(< " also works on Bash < 4. > > > > > > it's been around for pretty much all time. bash-2 had it for sure, and > > > that is ancient. > > > > It doesn't exist in bash 1.14.7, which is the oldest version I have > > available. It does exist in 2.04, which is the second oldest I have. > > bash-2 was released over a decade ago and for doing any realistic work, that > is the same as 'all time'. realistically, you're going to run into > portability problems with the tools run in the script rather than the script > itself.
Funny thing, how all those scripts I have to write for the machine with bash 1.14.7 don't count as "realistic".... Though you're right about the toolset being the main issue. I had to find a way to express things for the older version of GNU date (from sh-utils, before coreutils was called coreutils) on that box. Fortunately, my needs weren't very complex.
