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What linux shell command returns a part of a string? [duplicate]
I want to find a linux command that can return a part of the string. In most programming languages, it's the substr() function. Does bash have any command that can be used for this purpose. I want to be able to do something like this...
substr "abcdefg" 2 3 - prints cde .
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JPG vs. JPEG image formats
...on use, and .jpeg , with which Image Capture saves the images from scanning with my Canon MX455 printer. LaTeX doesn't seem to distinguish, as I gave it a .jpeg with the extension changed to .jpg and the result seems to be the same as if it had been a .jpg right from the start. I have w...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
...ebook create the Chat Heads on Android? What is the API to create the floating views on top of all other views?
3 Answers
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Correct way to write loops for promise.
How to correctly construct a loop to make sure the following promise call and the chained logger.log(res) runs synchronously through iteration? (bluebird)
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Clang vs GCC for my Linux Development project
I'm in college, and for a project we're using C. We've explored GCC and Clang, and Clang appears to be much more user friendly than GCC. As a result, I'm wondering what the advantages or disadvantages are to using clang, as opposed to GCC, for developing in C and C++ on Linux?
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Aren't promises just callbacks?
I've been developing JavaScript for a few years and I don't understand the fuss about promises at all.
10 Answers
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Is there a way to access an iteration-counter in Java's for-each loop?
Is there a way in Java's for-each loop
15 Answers
15
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NodeJS: How to get the server's port?
...xample hello world code for Node that creates an Http Server, starts listening on a port, then followed by something along the lines of:
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How can I add a string to the end of each line in Vim?
I want to add * to the end of each line in Vim.
10 Answers
10
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Android: How to put an Enum in a Bundle?
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Enums are Serializable so there is no issue.
Given the following enum:
enum YourEnum {
TYPE1,
TYPE2
}
Bundle:
// put
bundle.putSerializable("key", YourEnum.TYPE1);
// get
YourEnum yourenum = (YourEnum) bundle.get("key");
Intent:
// put
intent.putExtra("key", yourEnum);
/...