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Select random lines from a file
In a Bash script, I want to pick out N random lines from input file and output to another file.
4 Answers
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onIabPurchaseFinished never called.
...p in-app billing for my first app, and have been using the android.test.purchased sku. The purchase come through, and I manage to get the SKU into my inventory, but, as the title says, onIabPurchaseFinished, is never called.
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Break when exception is thrown
Visual Studio has an option to break automatically into the debugger when an unhandled exception is thrown, does Eclipse have similar functionality?
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Does a dot have to be escaped in a character class (square brackets) of a regular expression?
A dot . in a regular expression matches any single character. In order for regex to match a dot, the dot has to be escaped: \.
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How to switch position of two items in a Python list?
... been able to find a good solution for this problem on the net (probably because switch, position, list and Python are all such overloaded words).
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Where does this come from: -*- coding: utf-8 -*-
Python recognizes the following as instruction which defines file's encoding:
4 Answers
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Command to change the default home directory of a user
I would like to know whether there is any simple shell command to change the user home directory in Linux/Unix (one similar to chsh which changes the default login shell of an existing valid user) without touching the /etc/passwd file. Thanks
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Nohup is not writing log to output file
I am using the following command to run a python script in the background:
6 Answers
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How does OpenID authentication work?
I am a little curious to know about how OpenID authentication works.
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Why cast an unused function parameter value to void?
In some C project, I have seen this code:
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