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Remove carriage return in Unix

...many shells on many terminals, ctrl-V ctrl-M will produce a literal ctrl-M character). – tripleee Aug 25 '14 at 10:55 ...
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How to HTML encode/escape a string? Is there a built-in?

...d string that I want to show as text in an HTML page. I need to escape the chars ' < ' and ' & ' as HTML entities. The less fuss the better. ...
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How to grep a text file which contains some binary data?

...<test.log | grep whatever This will change anything less than a space character (except newline) and anything greater than 126, into a . character, leaving only the printables. If you want every "illegal" character replaced by a different one, you can use something like the following C progr...
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NSString tokenize in Objective-C

... @Adam, I think what you wanted was componentsSeparatedByCharactersInSet. See answer below. – Wienke Aug 28 '12 at 0:01 add a comment  |  ...
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When should I use nil and NULL in Objective-C?

...ke a C pointer) in Objective-C. Like nil , NULL got no value nor address. char *myChar = NULL; struct MyStruct *dStruct = NULL; So if there is a situation, when I need to check my struct (structure type variable) is empty or not then, I will use: if (dStruct == NULL) NSLog("The struct is emp...
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Convert InputStream to byte array in Java

...lass DataInputStream is primary used to read primary types (Longs, Shorts, Chars...) from a stream, so we can see this usage as a misuse of the class. – Olivier Faucheux Apr 8 '15 at 11:51 ...
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How do I check if a variable exists in a list in BASH

... give false positive if the user input contains regular expression special characters, for example x=. – glenn jackman Nov 9 '11 at 11:41 ...
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Can I use a function for a default value in MySql?

...m literal constant default values. CREATE TABLE t1 ( uuid_field VARCHAR(32) DEFAULT (uuid()), binary_uuid BINARY(16) DEFAULT (UUID_TO_BIN(UUID())) ); share | improve this answer ...
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maxlength ignored for input type=“number” in Chrome

...rch, password, tel, or url, this attribute specifies the maximum number of characters (in Unicode code points) that the user can enter; for other control types, it is ignored. So maxlength is ignored on <input type="number"> by design. Depending on your needs, you can use the min and max at...
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Java String to SHA1

... Using Guava Hashing class: Hashing.sha1().hashString( "password", Charsets.UTF_8 ).toString() share | improve this answer | follow | ...