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Shell one liner to prepend to a file
...time. Such fun.
The solution exploits the exact implementation of file descriptors on your system and, because implementation varies significantly between nixes, it's success is entirely system dependent, definitively non-portable, and should not be relied upon for anything even vaguely important....
Generating v5 UUID. What is name and namespace?
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PostgreSQL database default location on Linux
... "PGDATA=/var/lib/pgsql/data" to whatever location you want in the initial script file /etc/init.d/postgresql.
Remember to chmod 700 and chown postgres:postgres to the new location and you're the boss.
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REST APIs: custom HTTP headers vs URL parameters
...aders have the following advantages:
Can be read easily by network tools/scripts (authentication, meta info, ...)
Keeps urls free from security stuff (safer, not in browser/proxy caches)
Keeps urls cleaner: allows for better caching of resources
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Map function in MATLAB?
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How can I get a list of all classes within current module in Python?
...e module is already available in globals. If you execute foo as main (as a script) the module is actually run twice because when you get to 'import foo' main will be in the global namespace but not foo. After 'import foo' both 'main' and 'foo' will be in the globals namespace.
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Removing double quotes from variables in batch file creates problems with CMD environment
...Batch Files\Remove Quotes.cmd"
Press any key to continue . . .
%0 is the Script Name and Path.
%1 is the first command line argument, and so on.
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ImportError: No module named Crypto.Cipher
...ssue C vs c. To get around this.. just add these lines to the top of your script.
import crypto
import sys
sys.modules['Crypto'] = crypto
You know should be able to import paramiko successfully.
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Getting DOM elements by classname
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Using OpenSSL what does “unable to write 'random state'” mean?
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If you are using a scripting language like PHP to call openssl as www-data, you can solve this by creating /var/www/.rnd and chowning it to www-data. (Assuming that /var/www is www-data's home folder, which it is on most systems. You can check ...