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Rsync copy directory contents but not directory itself
I'm trying to synchronize two contents of folders with different name:
4 Answers
4
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How long is the SHA256 hash?
I'm going to run SHA256 on a password + salt, but I don't know how long to make my VARCHAR when setting up the MySQL database. What is a good length?
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
I want to refresh my memory on the conditions under which a compiler typically auto generates a default constructor, copy constructor and assignment operator.
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Using two values for one switch case statement
In my code, the program does something depending on the text entered by the user. My code looks like:
11 Answers
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What's the difference between `1L` and `1`?
I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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How do I fetch lines before/after the grep result in bash?
Hi I'm very new to bash programming. I want a way to search in a given Text. For that I use grep function:
4 Answers
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How to round an average to 2 decimal places in PostgreSQL?
I am using PostgreSQL via the Ruby gem 'sequel'.
8 Answers
8
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Replacing Pandas or Numpy Nan with a None to use with MysqlDB
I am trying to write a Pandas dataframe (or can use a numpy array) to a mysql database using MysqlDB . MysqlDB doesn't seem understand 'nan' and my database throws out an error saying nan is not in the field list. I need to find a way to convert the 'nan' into a NoneType.
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Rails: how do I validate that something is a boolean?
Does rails have a validator like validates_numericality_of for boolean or do I need to roll my own?
5 Answers
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How to “pull” from a local branch into another one?
This sounds so simple, but I just can't figure it out. I made an experimental branch a while ago, and now I'd like to pull in all the changes that happened on master since I made it. This is all local. I want to pull from local master into local my_branch, but I can't do it. This doesn't seem to wor...