[gentoo-user] Re: OT: cut replacement with bash builtins

[hamilton <hamilton@pobox.com>]

 On Sun, 27 Feb 2011 21:01:46 +0100, Florian Philipp wrote:
> Hi list!
>
> I'm currently streamlining some of my shell scripts to avoid 
> unnecessary
> process calls where bash itself is powerful enough.

 My experience (take it for whatever you think it's worth) is that
 doing so often just makes things harder to follow and maintain.
 It's very unlikely that the overhead of a fork+exec is appreciably
 slowing your process down.  Having said that (and in that vein) there
 is something more straightforward which may be useful:

 [...]

> My current solution is using two string operations:
> string='foo:bar:foo'
> # remove everything up to and including first ':'
> second_and_following=${string#*:}
> # remove everything from the first ':' following
> second_field=${second_and_following%%:*}

 second_field = $(echo $string | awk -F: '{print $2}')


-- 
 Jon Hamilton
 hamilton@pobox.com