On Fri, Aug 25, 2006 at 10:58:15PM +0200, Toby Cubitt wrote:
> On Fri, Aug 25, 2006 at 12:22:47PM +0100, Asfand Yar Qazi wrote:
> > I don't know if it's already been done, but here's a little script
> > that reads in all key bindings from enlightenment_remote, and
> > substitutes all uses of ALT with WIN.
> >
> > Just thought it might be useful to someone. If there's a better
> > solution out there, please tell me!
>
> Looks to me like a job for a sed + xargs one-liner(*) to me...
>
> (*) left as an exercise for the reader ;-)
OK, I got curious as to how easy this would be, so here's my attempt:
(split over multiple lines for clarity(!), but it could all be on
one...)
enlightenment_remote -binding-key-list | grep -v '<-' | \
tr = " " | cut -d" " -f4,6,8,10,12,14 | \
while read context key mod anymod action params; do \
if [[ -n "`echo $mod | grep ALT`" ]]; then \
enlightenment_remote -binding-key-del \
$context $key $mod $anymod $action $params; \
enlightenment_remote -binding-key-add \
$context $key `echo $mod | sed 's/ALT/WIN/g'` \
$anymod $action $params; \
fi; \
done
Admittedly, this doesn't use xargs after all. The (trimmed)
enlightenment_remote output contains VAR=VALUE pairs, which is already
in the right format for setting bash variables. So I wanted to pipe it
to xargs and get it to set temporary shell variables, then execute the
enlightenment remote commands using those variables. But I couldn't
figure out how to get xargs to set shell variables based on the text
it receives from the pipe. Instead, I munged the output with the tr
and cut commands, then piped it to the while loop and the read
command, etc.
Anyone know if there's a way to do what I want using xargs? Or indeed
any way to shorten it?
Of course, this isn't the diehard-bash-scripting-junkies mailing list,
so perhaps this is getting off-topic ;-)
But I do like the fact that an entire object-oriented,
relational-database-driven, automatic, systematic, hydromatic,
all-singing, all-dancing, fully web 3.0 hype-infused ruby program can
be replaced by one line of (incomprehensible) bash ;-)
Toby
PS: I've never even tried programming in ruby, so please don't take my
inane comments seriously ;-)
--
PhD Student
Quantum Information Theory group
Max Planck Institute for Quantum Optics
Garching, Germany
email: [EMAIL PROTECTED]
web: www.dr-qubit.org
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