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Batch script loop
...either have to copy/paste 100 copies of this command, OR use a for loop, but the for loop expects a list of items, hence I would need 200 files to operate on, or a list of 200 items, defeating the point.
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Delete empty lines using sed
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You may have spaces or tabs in your "empty" line. Use POSIX classes with sed to remove all lines containing only whitespace:
sed '/^[[:space:]]*$/d'
A shorter version that uses ERE, for example with gnu sed:
sed -r '/^\s*$/d'
(Note that sed doe...
How can I format a String number to have commas and round?
What is the best way to format the following number that is given to me as a String?
10 Answers
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Internet Explorer 9 not rendering table cells properly
My website has always run smoothly with IE8, IE7, FF, Chrome and Safari. Now I'm testing it on IE9 and I'm experiencing a strange problem: in some pages, some tabular data renders incorrectly.
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Do I need to heartbeat to keep a TCP connection open?
...mmunicate via TCP/IP. Component A acts as a server/listener and Component B is the client. The two should communicate as quickly as possible. There can only ever be one connection at any time (though that is aside to this question). A senior developer at my company has said I need to use applica...
Google Maps: Auto close open InfoWindows?
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answered Feb 8 '10 at 18:54
Chris BChris B
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Convert DOS line endings to Linux line endings in Vim
...prehensive page on line ending conversions.
Alternately, if you move files back and forth a lot, you might not want to convert them, but rather to do :set ff=dos, so Vim will know it's a DOS file and use DOS conventions for line endings.
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Matching an empty input box using CSS
How do I apply a style to an empty input box? If the user types something in the input field, the style should no longer be applied. Is this possible in CSS? I tried this:
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How to reset AUTO_INCREMENT in MySQL?
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You can reset the counter with:
ALTER TABLE tablename AUTO_INCREMENT = 1
For InnoDB you cannot set the auto_increment value lower or equal to the highest current index. (quote from ViralPatel):
Note that you cannot reset the counter to a value less than or eq...
浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...方式就能掀开它的神秘面纱。Ilya Grigorik在「High Performance B...很多人常常对TCP优化有一种雾里看花的感觉，实际上只要理解了TCP的运行方式就能掀开它的神秘面纱。Ilya Grigorik 在「High Performance Browser Networking」中做了很多细致的描...