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What is the purpose of fork()?
...esses. For example, every time you use a command like subprocess.Popen in Python, you fork a child process and read its output. This enables programs to work together.
Typical usage of fork in a shell might look something like this:
int child_process_id = fork();
if (child_process_id) {
// ...
Hexadecimal To Decimal in Shell Script
...le 'print hex("FF");'
255
with printf :
$ printf "%d\n" 0xFF
255
with python:
$ python -c 'print(int("FF", 16))'
255
with ruby:
$ ruby -e 'p "FF".to_i(16)'
255
with node.js:
$ nodejs <<< "console.log(parseInt('FF', 16))"
255
with rhino:
$ rhino<<EOF
print(parseInt('FF',...
gunicorn autoreload on source change
...'echo "${watch_src_path}" && kill -HUP `cat gunicorn.pid`' . &
python manage.py run_gunicorn 127.0.0.1:80 --pid=gunicorn.pid
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Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...
Thanks, was trying to access mysql from a python application using pymysql. Got error saying "Host is not allowed to connect to this MariaDB server", solved that by adding a new user given [here]( stackoverflow.com/questions/19101243/…), then got another error sayi...
Does Django scale? [closed]
... 200TB of Code and 2.500.000 Users
Disqus: Serving 400 million people with Python.
curse.com: 600k daily visits.
tabblo.com: 44k daily visits, see Ned Batchelder's posts Infrastructure for modern web sites.
chesspark.com: Alexa rank about 179k.
pownce.com (no longer active): alexa rank about 65k.
Mi...
What is the difference between Google App Engine and Google Compute Engine?
...ally used. But the restriction is, you can create your application in only Python, PHP, Java, NodeJS, .NET, Ruby and **Go.
On the other hand, GCE provides you full infrastructure in the form of Virtual Machine. You have complete control over those VMs' environment and runtime as you can write or in...
How to kill zombie process
... edited Apr 14 '14 at 12:51
PythoNic
26555 silver badges1212 bronze badges
answered Sep 16 '13 at 6:11
Moh...
Disable IPython Exit Confirmation
...
If you also want Ctrl-D to exit without confirmation, in IPython 0.11, add c.TerminalInteractiveShell.confirm_exit = False to your config file *.
If you don't have a config file yet, run ipython profile create to create one.
Note this ticket if you're working within the Django she...
Render HTML to an image
...wkhtmltopdf tool)
IMGKit (for ruby and based on wkhtmltoimage)
imgkit (for python and based on wkhtmltoimage)
python-webkit2png
...
Pros
Conversion is quite fast most of the time
Cons
Bad rendering
Does not execute javascript
No support for recent web features (FlexBox, Advanced Selectors, W...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
...buffer set the mark at your old location. An example is when I'm editing a Python module and need to add an import statement to the top of the file. The keystroke for going to the top of the buffer (Alt-<) sets the mark. I add the import statement. I press Ctrl-u Ctrl-Space and I'm back where i s...