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A beginner's guide to SQL database design [closed]
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cheng81
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If a folder does not exist, create it
...you don't need to check if it exists first. From the docs
Any and all directories specified in path are created, unless they already exist or unless some part of path is invalid. If the directory already exists, this method does not create a new directory, but it returns a DirectoryInfo object ...
Creating a directory in CMake
In CMake, I want to create a directory if it doesn't already exist. How can I do this?
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jQuery Event Keypress: Which key was pressed?
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Eran GalperinEran Galperin
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Add list to set?
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To add the elements of a list to a set, use update
From https://docs.python.org/2/library/sets...
Meaning of tilde in Linux bash (not home directory)
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Those are the home directories of the users. Try cd ~(your username), for example.
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List directory tree structure in python?
I know that we can use os.walk() to list all sub-directories or all files in a directory. However, I would like to list the full directory tree content:
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How can I fill out a Python string with spaces?
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You can try this:
print "'%-100s'" % 'hi'
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How to specify the location with wget?
...directory prefix is the
directory where all other files and sub-directories will be
saved to, i.e. the top of the retrieval tree. The default
is . (the current directory).
So you need to add -P /tmp/cron_test/ (short form) or --directory-prefix=/tmp/cron_test/ (lo...
MySQL dump by query
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!!WARNING!! mysqldump adds a 'DROP TABLE' command at the top of the exported file. That means if you do a partial export then reimport it, ...