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In a Git repository, how to properly rename a directory?
... to copy the directory to be renamed to a new directory with desired name, and delete the old directory , and git add , git commit and push everything. But is this the best way?
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Python: Continuing to next iteration in outer loop
...tinue loop i
In a general case, when you have multiple levels of looping and break does not work for you (because you want to continue one of the upper loops, not the one right above the current one), you can do one of the following
Refactor the loops you want to escape from into a function
def ...
CSS scrollbar style cross browser [duplicate]
...CSS scrollbar style cross browser? I tested this code, it only works in IE and opera, but failed in Chrome, Safari and Firefox.
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Visual Studio retrieving an incorrect path to a project from somewhere
Visual Studio (and possibly TFS) has somehow (I think perhaps during a source control merge) become confused about the path of a project within my solution.
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Generate a random double in a range
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To generate a random value between rangeMin and rangeMax:
Random r = new Random();
double randomValue = rangeMin + (rangeMax - rangeMin) * r.nextDouble();
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Check if a given key already exists in a dictionary and increment it
...ording to his example, it should be enough to set "defaultdict(lambda: 0)" and skip the entire "if" clause.
– Deestan
Jan 23 '09 at 14:57
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Cookies vs. sessions
...r the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and just said: "who cares? I don't have any good de...
Getting root permissions on a file inside of vi? [closed]
Often while editing config files, I'll open one with vi and then when I go to save it realize that I didn't type
10 Answers...
Check Whether a User Exists
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You can also check user by id command.
id -u name gives you the id of that user.
if the user doesn't exist, you got command return value ($?)1
And as other answers pointed out: if all you want is just to check if the user exists, use if with id directly, as i...
Grep and Sed Equivalent for XML Command Line Processing
...a will be in files of single line records like csv. It's really simple to handle this data with grep and sed . But I have to deal with XML often, so I'd really like a way to script access to that XML data via the command line. What are the best tools?
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