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How to extract the first two characters of a string in shell scripting?
...two characters, short will be identical to it.
This in-shell method is usually better if you're going to be doing it a lot (like 50,000 times per report as you mention) since there's no process creation overhead. All solutions which use external programs will suffer from that overhead.
If you also...
rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...tion.rb
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config.assets.compile = true
...
You can use this option to fallback to Sprockets when you are using precompiled assets but there are any missing precompiled files.
If config.assets.compile option is set to false and there are missing precompiled files you will get an "AssetNoPrecompi...
What is meant by Resource Acquisition is Initialization (RAII)?
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It's a really terrible name for an incredibly powerful concept, and perhaps one of the number 1 things that C++ developers miss when they switch to other languages. There has been a bit of a movement to try to rename this concept as ...
What is the convention for word separator in Java package names?
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Packages
The prefix of a unique package name is always written in all-lowercase ASCII letters and should be one of the top-level domain names, currently com, edu, gov, mil, net, org, or one of the English two-letter codes identifying countries as specified in ISO Standard 3166, 1981.
S...
How to commit my current changes to a different branch in Git [duplicate]
...nges should be committed in a branch different to the current one. This usually happens when I want to try out new things or do some testing and I forget to create a new branch beforehand, but I don't want to commit dirty code to the master branch.
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Does Java SE 8 have Pairs or Tuples?
..., value[i]) , then filter based on the second value[i] element, and finally output just the indices.
9 Answers
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How to check if a String contains another String in a case insensitive manner in Java?
...tains is case sensitive. You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching:
Pattern.compile(Pattern.quote(wantedStr), Pattern.CASE_INSENSITIVE).matcher(source).find();
EDIT: If s2 contains regex special characters (of which there are many) it's impo...
How can I create directories recursively? [duplicate]
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Specifically: os.makedirs(os.path.join("/home/dail", "first", "second", "third"))
– mseery
May 14 '11 at 22:41
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How to create PDF files in Python [closed]
...ich takes some images from user and then creates a PDF file which contains all of these images.
14 Answers
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Best way to convert an ArrayList to a string
...al #14; //Method java/lang/StringBuilder."<init>":()V
68: aload_2
69: invokevirtual #15; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
72: aload 4
74: invokevirtual #15; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)...