tadded sample command to config.default.h to highlight how to query class:instance info with a one-liner of shell commands - dwm - [fork] customized build of dwm, the dynamic window manager
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       ---
 (DIR) commit 56130c36894edd0c730e5c8ee0ac07cad524d176
 (DIR) parent 14f7380308c4213aac7956c272dec0d23c2f42d3
 (HTM) Author: Anselm R.Garbe <arg@10ksloc.org>
       Date:   Wed, 16 Aug 2006 15:00:14 +0200
       
       added sample command to config.default.h to highlight how to query class:instance info with a one-liner of shell commands
       
       Diffstat:
         M config.default.h                    |       2 ++
       
       1 file changed, 2 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/config.default.h b/config.default.h
       t@@ -48,6 +48,8 @@ static Key key[] = { \
                { MODKEY|ShiftMask,                XK_q,                quit,                { 0 } }, \
        };
        
       +/* Query class:instance for regex matching info with following command:
       + * ; xprop | grep WM_CLASS | sed 's/"//g;s/,//g' | awk '{ printf("%s:%s", $4, $3) }' */
        #define RULES \
        static Rule rule[] = { \
                /* class:instance regex                tags regex        isfloat */ \