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How to create a trie in Python
...; _end = '_end_'
>>>
>>> def make_trie(*words):
... root = dict()
... for word in words:
... current_dict = root
... for letter in word:
... current_dict = current_dict.setdefault(letter, {})
... current_dict[_end] = _end
... return ...
How to get Twitter-Bootstrap navigation to show active link?
... HAML implementation %li{:class => "#{'active' if current_page?(root_path)}"}=link_to "Home", root_path
– Brian
Feb 18 '13 at 0:44
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git clone through ssh
...bly specific commands. Instead of saying <your folder>, I will say /root/git. The only place where I am changing the original command is replacing my specific server name with example.com. I will explain the folders purpose is so you can adjust it accordingly. Please let me know of any con...
scp (secure copy) to ec2 instance without password
... arguments in the wrong order. This works:
scp -i mykey.pem somefile.txt root@my.ec2.id.amazonaws.com:/
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How to install mongoDB on windows?
...nf
Download and extract win32 binaries into c:\wamp directory along side mysql, apache.
mongodb download page
Create a mongo.conf file
c:\wamp\bin\mongodb\mongodb-win32…2.x.x\conf\mongodb.conf
# mongodb.conf
# data lives here
dbpath=C:\wamp\bin\mongodb\mongodb-win32...2.x.x\data\db
# where...
scp or sftp copy multiple files with single command
.... Not sure where this should work. ``` (venv) ➜ git:(master) ✗ scp root@172.29..xxx.yyy:"/usr/local/bin/kubectl /root/.kube/config" /tmp/ root@172.29..xxx.yyy's password: protocol error: filename does not match request ```
...
Sign APK without putting keystore info in build.gradle
...pretty simple.
Create a keystore.properties file (in this example, in the root directory of your project next to settings.gradle, though you can put it wherever you like:
storePassword=...
keyPassword=...
keyAlias=...
storeFile=...
Add this to your build.gradle:
allprojects {
afterEvaluate ...
Using scp to copy a file to Amazon EC2 instance?
...'t know if you're joking or not... but :/ would try copy the folder to the root of the system, which would give permission errors on all machines without running sudo (or as root).
– Dobz
Jul 29 '14 at 15:17
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How many database indexes is too many?
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I made some simple tests on my real project and real MySql database. I already answered in this topic: What is the cost of indexing multiple db columns?
But I think it will be better if I quote it here:
I made some simple tests using my real
project and real MySql databa...
Windows 7, 64 bit, DLL problems
...lls other DLL files.
In my case, it was not three .ocx files, but missing MySQL connector DLL file. After installing of MySQL Connector for .NET on server, the problem disappeared.
So, in short, the solution is: check if all your project references are there.
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