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In the shell, what does “ 2>&1 ” mean?
In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command:
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How to split a string in shell and get the last field
Suppose I have the string 1:2:3:4:5 and I want to get its last field ( 5 in this case). How do I do that using Bash? I tried cut , but I don't know how to specify the last field with -f .
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Add a column with a default value to an existing table in SQL Server
How can I add a column with a default value to an existing table in SQL Server 2000 / SQL Server 2005 ?
41 Answers
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Test whether a list contains a specific value in Clojure
What is the best way to test whether a list contains a given value in Clojure?
18 Answers
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Open soft keyboard programmatically
I have an activity with no child widgets for it and the corresponding xml file is,
23 Answers
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How do I create a variable number of variables?
How do I accomplish variable variables in Python?
14 Answers
14
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Is it possible to refresh a single UITableViewCell in a UITableView?
I have a custom UITableView using UITableViewCell s.
Each UITableViewCell has 2 buttons. Clicking these buttons will change an image in a UIImageView within the cell.
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Where is Android Studio layout preview?
I installed Android Studio, but when I edit my layout files, I can't find live preview! I just see an XML file. How can I see my layout in graphical view?
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Read logcat programmatically within application
I want to read and react to logcat logs within my application.
6 Answers
6
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What Automatic Resource Management alternatives exist for Scala?
I have seen many examples of ARM (automatic resource management) on the web for Scala. It seems to be a rite-of-passage to write one, though most look pretty much like one another. I did see a pretty cool example using continuations, though.
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