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Using sed, how do you print the first 'N' characters of a line?
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edited Jan 13 at 13:43
Paulo Mattos
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Increment a value in Postgres
...able 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total to 204?
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Rails 3 check if attribute changed
Need to check if a block of attributes has changed before update in Rails 3.
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Objective-C: Extract filename from path string
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3 Answers
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ADB Install Fails With INSTALL_FAILED_TEST_ONLY
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edited Dec 31 '17 at 7:14
be_good_do_good
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use initial width for element not working in IE
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answered Mar 11 '14 at 10:53
Mark RhodesMark Rhodes
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How to un-escape a backslash-escaped string?
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139
>>> print '"Hello,\\nworld!"'.decode('string_escape')
"Hello,
world!"
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Javascript Reduce an empty array
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232
The second parameter is for initial value.
[].reduce(function(previousValue, currentValue){
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How to redirect stderr to null in cmd.exe
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Your DOS command 2> nul
Read page Using command redirection operators. Besides the "2>" ...