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Get line number while using grep
I am using grep recursive to search files for a string, and all the matched files and the lines containing that string are print on the terminal. But is it possible to get the line numbers of those lines too??
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How do I enable language extensions from within GHCi?
... -XRankNTypes. The -X part is a compiler switch, by the way, extension is called just RankNTypes.
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Generic method multiple (OR) type constraint
Reading this , I learned it was possible to allow a method to accept parameters of multiple types by making it a generic method. In the example, the following code is used with a type constraint to ensure "U" is an IEnumerable<T> .
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How to invert a grep expression
The following grep expression successfully lists all the .exe and .html files in the current directory and sub directories.
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Aborting a shell script if any command returns a non-zero value?
...vokes a number of commands.
I would like to have the shell script automatically exit with a return value of 1 if any of the commands return a non-zero value.
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How to change the color of a CheckBox?
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This will automatically be used when you use CheckBox in your layouts. You should only need to manually use this class when writing custom views.
– 최봉재
Apr 12 '17 at 9:22
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What is the difference between a User Control Library and a Custom Control Library?
... control base classes and provide additional functionality through code so all the added logic and representation must be implemented inside the code.
A user control is technically a normal content control which you can extend in some parts in the code but usually it is extended by placing other c...
mongodb, replicates and error: { “$err” : “not master and slaveOk=false”, “code” : 13435 }
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You have to set "slave okay" mode to let the mongo shell know that you're allowing reads from a secondary. This is to protect you and your applications from performing eventually consistent reads by accident. You can do this in the shell with:
rs.slaveOk()
After that you can query normally from ...
Rails: Why does find(id) raise an exception in rails? [duplicate]
... (1, 5, 6), or an array of ids ([5, 6, 10]). If no record can be found for all of the listed ids, then RecordNotFound will be raised.
If you don't want the exception to be raised, use find_by_id, which will return nil if it can't find an object with the specified id. Your example would then be Us...
MVC4 DataType.Date EditorFor won't display date value in Chrome, fine in Internet Explorer
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What would be the way of doing this "globally" for all properties marked [DataType(DataType.Date)] so I wouldn't have to mark all these properties separately with the risk of missing some?
– Marjan Venema
Jul 20 '13 at 13:35
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