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Linux command or script counting duplicated lines in a text file?
...ms together) then uniq -c to give counts, i.e.:
sort filename | uniq -c
and to get that list in sorted order (by frequency) you can
sort filename | uniq -c | sort -nr
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Will Dispose() be called in a using statement with a null object?
... Note that even if your variable is null, the using block is executed, and if you reference your variable inside the using block without first null-checking it, you WILL get NullReferenceException. To prevent misinterpretation, this answer should state: "Yes, Dispose() is only called on non-null...
Django templates: verbose version of a choice
... for the field, where 'FOO' is the name of the field.
Note: in case the standard FormPreview templates are not using it, then you can always provide your own templates for that form, which will contain something like {{ form.get_meal_display }}.
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“register” keyword in C?
...ve read that it is used for optimizing but is not clearly defined in any standard. Is it still relevant and if so, when would you use it?
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Npm Please try using this command again as root/administrator
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It turns out that you don’t have to run the command again as Administrator, and doing so won’t fix the problem.
Try:
npm cache clean first.
If that doesn’t fix things, take a look in %APPDATA%\npm-cache, or if you’re using PowerShell, $env:APPDATA\npm-cache.
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Converting unix timestamp string to readable date
...have a string representing a unix timestamp (i.e. "1284101485") in Python, and I'd like to convert it to a readable date. When I use time.strftime , I get a TypeError :
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Need to list all triggers in SQL Server database with table name and table's schema
I need to list all triggers in SQL Server database with table name and table's schema.
19 Answers
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git-checkout older revision of a file under a new name
... > old_main.cpp
(Note that there is colon [:] character between HEAD^ and main.cpp.) The <revision>:<path> syntax is described in git rev-parse manpage, next to last point in the "Specifying revisions" section:
<rev>:<path>, e.g. HEAD:README, :README, master:./RE...
How to select first parent DIV using jQuery?
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parents("div") is traversing and returns all the parent div's you should use .eq(0) after it to make sure it returns just the one you want
– meo
Aug 17 '11 at 7:44
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ToList()— does it create a new list?
...en the new list would contain copies of the elements in the original list, and updating a property of an element in the new list would not affect the equivalent element in the original list.)
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