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how to use sed, awk, or gawk to print only what is matched?
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11 Answers
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Specify pane percentage in tmuxinator project
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1 Answer
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leading zeros in rails
...min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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Is it possible to declare two variables of different types in a for loop?
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146
C++17: Yes! You should use a structured binding declaration. The syntax has been supported in...
Perl build, unit testing, code coverage: A complete working example
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It took me a while and it also took me taking small snippets from a number of different source...
How to configure PostgreSQL to accept all incoming connections
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218
Just use 0.0.0.0/0.
host all all 0.0.0.0/0 md5
Make su...
Make xargs execute the command once for each line of input
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13 Answers
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C++: Rounding up to the nearest multiple of a number
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31 Answers
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Remove duplicated rows using dplyr
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Note: dplyr now contains the distinct function for this purpose.
Original answer below:
li...
How to create an array containing 1…N
...r any alternatives to the below for creating a JavaScript array containing 1 through to N where N is only known at runtime.
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