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PO
primarykey
Id
6420376
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
2011-06-21T04:42:00.380
CreationDate
2011-06-21T04:33:19.010
FavoriteCount
0
LastActivityDate
2011-06-21T04:50:25.633
LastEditDate
2017-05-23T12:27:00.010
LastEditorUserId
-1
OwnerUserId
576139
ParentId
6420265
PostTypeId
2
Score
6
ViewCount
0
LastEditorDisplayName
text
Body
This won't work, and here's why. Environment variables are inherited from the parent process. A child can't control a parent's environment. Here's what's happening in your setup: <pre><code> bash -> java -> unset | | | parent child grand-child | | | unaffected unaffected affected </code></pre> So in actuality your command IS working, however it's not having the effect you want it to. Sadly java won't be able to change the parent's environment. Your java program can modify environment variables of its own, and any children spawned by java will inherit those variables. So you could potentially have java launch a bash shell for you, and then use that bash shell interactively, but that seems like a lot of overhead. See this post for how to set java's environment variables: <a href="https://stackoverflow.com/questions/318239/how-do-i-set-environment-variables-from-java">How do I set environment variables from Java?</a> If you're willing to sidestep the whole java problem, what most people do in this situation is source a special file. For example, create a file called "no-x.sh" that looks like this: <pre><code># Unset the display variable unset DISPLAY </code></pre> And then from your current (interactive) shell, source the file like this: <pre><code>$> source no-x.sh </code></pre> and now your main bash shell has had its environment changed. Note that this is a HACK (or for all of you bash zealots out there -- a feature) and you should never expect to duplicate this functionality with anything else (like java).
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1. PORun command in linux terminal using java program?
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1. PTAnswer
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1. USCommunity
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1. USChris Eberle
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