大约有 26,000 项符合查询结果(耗时:0.0462秒) [XML]
What is that “total” in the very first line after ls -l? [closed]
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You can find the definition of that line in the ls documentation for your platform. For coreutils ls (the one found on a lot of Linux systems), the information can be found via info coreutils ls:
For each directory that is listed, preface the files with a line
`total B...
Find and Replace text in the entire table using a MySQL query
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For a single table update
UPDATE `table_name`
SET `field_name` = replace(same_field_name, 'unwanted_text', 'wanted_text')
From multiple tables-
If you want to edit from all tables, best way is to take the dump and then find/replace and upload it back.
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
...tional to y. polyfit supports weighted-least-squares via the w keyword argument.
>>> x = numpy.array([10, 19, 30, 35, 51])
>>> y = numpy.array([1, 7, 20, 50, 79])
>>> numpy.polyfit(x, numpy.log(y), 1)
array([ 0.10502711, -0.40116352])
# y ≈ exp(-0.401) * exp(0.105 * ...
Can't import my own modules in Python
I'm having a hard time understanding how module importing works in Python (I've never done it in any other language before either).
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Database design for audit logging
Every time I need to design a new database I spend quite some time
thinking on how I should set up the database schema to keep an audit log of
the changes.
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How do I loop through a date range?
I'm not even sure how to do this without using some horrible for loop/counter type solution. Here's the problem:
16 Answer...
JavaScript: Passing parameters to a callback function
I'm trying to pass some parameter to a function used as callback, how can I do that?
13 Answers
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Bower: ENOGIT Git is not installed or not in the PATH
...t. Please check where yours is before continuing.
Open the Windows Environment Variables/Path Window.
Right-click on My Computer -> Properties
Click Advanced System Settings link from the left side column
Click Environment Variables in the bottom of the window
Then under System Variables look ...
Do you get charged for a 'stopped' instance on EC2? [closed]
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No.
You get charged for:
Online time
Storage space (assumably you store the image on S3 [EBS])
Elastic IP addresses
Bandwidth
So... if you stop the EC2 instance you will only have to pay for the storage of the image on S3 (assuming you store an image ofcou...
Outlook autocleaning my line breaks and screwing up my email format
I'm sending an email using the dotnet framework. Here is the template that I'm using to create the message:
11 Answers
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