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starting and killing evince process in a loop

rated 0 times [ 1] [ 0] / answers: 1 / hits: 1000 / 3 Years ago, mon, may 3, 2021, 9:47:47

I have certain PDF files. I want to inspect each of them for 20 seconds. The way I was trying to do that is like following: for file in *.pdf; do echo $file; evince $file; sleep 20s; killall evince; done . It displays the first file, but does not kill it after 20s. What is going wrong here?

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ndaavi

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3 Years ago

answered 3 Years ago ionash · Accepted Answer

I think you just forgot to run evince in background:

for file in *.pdf; do echo $file; evince $file &; sleep 20s; killall evince; done

Notice the & after the evince command.