[opensuse] why /var/run and /run these two directories have absolutely the same contents?

6 May 2013

      i know /run is a new cross-distribution location for the storage of transient 
state files, and /var/run is replaced by /run. but 
1, why /var/run still have contents just as the same as /run ? just for 
backward compatibilty ?

2, if a program want to write some data to /run, is it supposed to write the 
same data to /var/run ?

3, it seems /var/run is not a symlink to /run, so /var/run occupy harddisk 
space, just like  /run does?
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bruce

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