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Find lines from a file which are not present in another file [duplicate]
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The command you have to use is not diff but comm
comm -23 a.txt b.txt
By default, comm outputs 3 columns: left-only, right-only, both. The -1, -2 and -3 switches suppress these columns.
So, -23 hides the right-only and both columns, showing the lines that appear only in the fi...
OO Design in Rails: Where to put stuff
...s that Rails gives you by default.
Update: This answer applies to Rails 2.x and higher.
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Why does gulp.src not like being passed an array of complete paths to files?
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162
When you pass in an array of full paths, each file is processed independently. The globbing doe...
Practical example where Tuple can be used in .Net 4.0?
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edited Oct 28 '14 at 18:29
Appulus
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uint8_t can't be printed with cout
...e's a number of invisible ASCII character codes, most of them below value 32, which is the blank actually.
You have to convert aa to unsigned int to output the numeric value, since ostream& operator<<(ostream&, unsigned char) tries to output the visible character value.
uint8_t aa=5;...
jQuery validate: How to add a rule for regular expression validation?
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12 Answers
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Base64 encoding and decoding in client-side Javascript
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216
Some browsers such as Firefox, Chrome, Safari, Opera and IE10+ can handle Base64 natively. Tak...
How do I run a Node.js application as its own process?
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2016 answer: nearly every Linux distribution comes with systemd, which means forever, monit, PM2, etc. are no longer necessary - your OS already handles these tasks.
Make a myapp.service file (replacing 'myapp' with your app...
Converting String array to java.util.List
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252
List<String> strings = Arrays.asList(new String[]{"one", "two", "three"});
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Center a 'div' in the middle of the screen, even when the page is scrolled up or down?
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edited Mar 28 '17 at 11:54
user5890979
answered Jun 13 '11 at 18:22
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