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How to calculate time elapsed in bash script?

...ers of detail, from bash-hackers.org: %(FORMAT)T outputs the date-time string resulting from using FORMAT as a format string for strftime(3). The associated argument is the number of seconds since Epoch, or -1 (current time) or -2 (shell startup time). If no corresponding argument is suppl...
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In PHP what does it mean by a function being binary-safe?

... function will work correctly when you pass it arbitrary binary data (i.e. strings containing non-ASCII bytes and/or null bytes). For example, a non-binary-safe function might be based on a C function which expects null-terminated strings, so if the string contains a null character, the function wo...
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?? Coalesce for empty string?

Something I find myself doing more and more is checking a string for empty (as in "" or null) and a conditional operator. ...
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Facebook Open Graph not clearing cache

...fresh even if you delete the thumnail/image from your server. But Facebook allows you to refresh by using fbrefresh I hope this helps. share | improve this answer | follow ...
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Test if string is a guid without throwing exceptions?

I want to try to convert a string to a Guid, but I don't want to rely on catching exceptions ( 18 Answers ...
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Change / Add syntax highlighting for a language in Sublime 2/3

... this in JavaScript: <dict> <key>name</key> <string>Lang Variable</string> <key>scope</key> <string>variable.language</string> <key>settings</key> <dict> <key>foreground</key> ...
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RegEx to parse or validate Base64 data

...9+/]{2}==|[A-Za-z0-9+/]{3}=)?$ This one is good, but will match an empty String This one does not match empty string : ^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$ share | ...
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How can I get the root domain URI in ASP.NET?

...which has all the pieces broken down for you. It shouldn't be giving you a string. At least not in the version of .net I am using – JoshBerke Apr 4 '12 at 19:37 6 ...
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Swift - Convert to absolute value

... The standard abs() function works great here: let c = -8 print(abs(c)) // 8 share | improve this answer | ...
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Can a JSON value contain a multiline string

...control characters" so, no, you may not have a literal newline within your string. However you may encode it using whatever combination of \n and \r you require. The JSONLint tool confirms that your JSON is invalid. Update: And if you want to write newlines inside your JSON syntax without actual...