yapp_query dev1 ...
yapp_query png pswould return the first device that is available. Here’s an example of usage:
dev=$(yapp_query png ps) tabplot 1.tab yapp=fig1.$dev/$devwould be a more portable way. This is a common situation, where on redhat based system the png driver is not installed, but on debian based it is (in 2021).
2021 Created PJT
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