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From: Ed Morton on 29 Mar 2010 23:47
On 3/29/2010 9:05 PM, houghi wrote:
> I have a bash script that does the following:
> DIFF=`xwininfo|grep 'Corners'|awk '{print $2}'`

You never need grep if you're already using awk, the above is equivalent to:

DIFF=`xwininfo| awk '/Corners/{print $2}'`

>
> This will give an otput like:
> DIFF=+82+24 or DIFF=+1023+987
>
> However the output must be +82,24 (or +1023,987) so the second + needs
> to become a comma instead of a plus. I could remove the first character,
> change the + to a , with sed and then add the + again, but I would think
> that there is a more elegant solution.
>
> houghi

DIFF=`xwininfo| awk '/Corners/{split($2,a,"+"); printf "+%s,%s\n",a[2],a[3]}'`

Ed.
From: Chris F.A. Johnson on 29 Mar 2010 23:53
On 2010-03-30, houghi wrote:
> I have a bash script that does the following:
> DIFF=`xwininfo|grep 'Corners'|awk '{print $2}'`
>
> This will give an otput like:
> DIFF=+82+24 or DIFF=+1023+987
>
> However the output must be +82,24 (or +1023,987) so the second + needs
> to become a comma instead of a plus. I could remove the first character,
> change the + to a , with sed and then add the + again, but I would think
> that there is a more elegant solution.

printf "%s,%s\n" "${DIFF%+*}" "${DIFF#*"${DIFF%+*}"}"


Or:

temp=${DIFF%+*}
printf "%s,%s\n" "${DIFF%+*}" "${DIFF#*"$temp"}"


--
Chris F.A. Johnson, author <http://shell.cfajohnson.com/>
===================================================================
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
===== My code in this post, if any, assumes the POSIX locale =====
===== and is released under the GNU General Public Licence =====
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