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How to delete from a text file, all lines that contain a specific string?
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To remove the line and print the output to standard out:
sed '/pattern to match/d' ./infile
To directly modify the file – does not work with BSD sed:
sed -i '/pattern to match/d' ./infile
Same, but for BSD sed (Mac OS X and FreeBSD) –...
Most efficient way to prepend a value to an array
... Only one issue with this solution. Doesn't unshift() return its length, and not the array as in this answer? w3schools.com/jsref/jsref_unshift.asp
– iDVB
Mar 8 '15 at 5:36
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Is JavaScript supported in an email message?
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Old clients, such as Lotus Notes, Mozilla Thunderbird, Outlook Express, and Windows Live Mail all seem to have supported some sort of JavaScript execution. Nothing else does.
It seems like a bad idea security-wise, so I would expect this to be a feature that won't always be around, even in thes...
Swift: Pass array by reference?
...ify your array (see answers below). Classes are passed by reference. Array and Dictionary in Swift are implemented as structs.
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Using numpy to build an array of all combinations of two arrays
... noted that meshgrid only works for smaller range sets, I have a large one and I get error: ValueError: maximum supported dimension for an ndarray is 32, found 69
– mikkom
Oct 20 '19 at 6:54
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Error Code: 2013. Lost connection to MySQL server during query
...onds? The DBMS connection read time out field only accept up to 5 figures, and setting the field to 0 is equivalent to the default parameter (600 seconds). (Windows 7 64-bit Ultimate, MySQL Workbench 5.2.47 CE)
– Franck Dernoncourt
Jun 1 '13 at 21:30
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Debugging automatic properties
... Briliant. Thanks. I don't need to change automatic properties to standard one (with field) anymore. And no more recompilation:)
– Marek Kwiendacz
Jul 16 '11 at 22:24
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Angular JS: What is the need of the directive’s link function when we already had directive’s contro
I need to perform some operations on scope and the template. It seems that I can do that in either the link function or the controller function (since both have access to the scope).
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Remove duplicates from a List in C#
... its unbelievable fast... 100.000 strings with List takes 400s and 8MB ram, my own solution takes 2.5s and 28MB, hashset takes 0.1s!!! and 11MB ram
– sasjaq
Mar 25 '13 at 22:28
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Html helper for
...e is available in MvcFutures. It will validate file extensions client side and server side.)
public class ViewModel
{
[Required, Microsoft.Web.Mvc.FileExtensions(Extensions = "csv",
ErrorMessage = "Specify a CSV file. (Comma-separated values)")]
public HttpPostedFileBase File ...