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Get OS-level system information
I'm currently building a Java app that could end up being run on many different platforms, but primarily variants of Solaris, Linux and Windows.
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How do I use grep to search the current directory for all files having the a string “hello” yet disp
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You can pass in wildcards in instead of specifying file names or using stdin.
grep hello *.h *.cc
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Repeat command automatically in Linux
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Watch every 5 seconds ...
watch -n 5 ls -l
If you wish to have visual confirmation of changes, append --differences prior to the ls command.
According to the OSX man page, there's also
The --cumulative option makes highlighting "sticky", presenting a
running di...
How to deal with “java.lang.OutOfMemoryError: Java heap space” error?
...platform you are running on. In Windows 32 bit this is around 2GB (not specifically heap but total amount of memory per process). It just happens that Java chooses to make the default smaller (presumably so that the programmer can't create programs that have runaway memory allocation without running...
Can you use a trailing comma in a JSON object?
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Unfortunately the JSON specification does not allow a trailing comma. There are a few browsers that will allow it, but generally you need to worry about all browsers.
In general I try turn the problem around, and add the comma before the actual value,...
android.view.InflateException: Binary XML file: Error inflating class fragment
...ght
languages and on the right side for right-to-left languages.
If you're not building against API 17 or higher, use
android:layout_gravity="left" instead. -->
<!-- The drawer is given a fixed width in dp and extends the full height of
the container. -->
<fragment a...
Cannot add or update a child row: a foreign key constraint fails
...value for the UserID field based on the values currently stored in table1. If you post some more code I can help you diagnose the specific cause.
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Get array of object's keys
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Or each, if you're doing something with them. $.each(foo, function(index, value){/* do something with index */});
– Chris
Jan 27 at 18:07
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Difference between GeoJSON and TopoJSON
What is the difference between GeoJSON and TopoJSON and when would I use one over the other?
3 Answers
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How to create full compressed tar file using Python?
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Just as a note to readers, if you leave out arcname=os.path.basename(source_dir) then it'll give you the entire path structure of source_dir in the tar file (in most situations, that's probably inconvenient).
– Brōtsyorfuzthrāx
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