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How can I exclude directories from grep -R?

I want to traverse all subdirectories, except the "node_modules" directory. 13 Answers ...
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How can I ask the Selenium-WebDriver to wait for few seconds in Java?

... haventchecked, actually using intelij IDEA for development, it's helping with auto-imports (when working in maven-based project) – eugene.polschikov Jun 28 '16 at 10:47 ...
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Android AsyncTask threads limits?

...ery time user logs in to the system, I also use database in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experienced that if I do some operations some of my async tasks simply s...
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Spring vs EJB. Can Spring replace EJB? [closed]

...t Java EE app server to another. But that means staying away from any and all vendor-specific extensions that lock you in to one vendor. Spring ports easily between app servers (e.g., WebLogic, Tomcat, JBOSS, etc.) because it doesn't depend on them. However, you are locked into Spring. Spring en...
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convert String to DateTime

... DateTime.strptime allows you to specify the format and convert a String to a DateTime. share | improve this answer | ...
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Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]

...ed by the last print statement. You can assign the result of the str(c) call to c as correctly shown by @jamylak and then concatenate all of the strings, or you can replace the last print simply with this: print "a + b as integers: ", c # note the comma here in which case str(c) isn't nece...
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I lose my data when the container exits

...it. Try this: sudo docker pull ubuntu sudo docker run ubuntu apt-get install -y ping Then get the container id using this command: sudo docker ps -l Commit changes to the container: sudo docker commit <container_id> iman/ping Then run the container: sudo docker run iman/ping ping w...
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git ignore exception

...have a gitignore file that makes git ignore *.dll files, and that is actually the behavior I want. However, if I want an exception ( i.e. to be able to commit foo.dll ), how can I achieve this? ...
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Java Class.cast() vs. cast operator

...ject) isn't special to the compiler. It could be optimized when used statically (i.e. Foo.class.cast(o) rather than cls.cast(o)) but I've never seen anybody using it - which makes the effort of building this optimization into the compiler somewhat worthless. ...
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Using margin:auto to vertically-align a div

So I know we can center a div horizontally if we use margin:0 auto; . Should margin:auto auto; work how I think it should work? Centering it vertically as well? ...