sequences

Strings, lists & tuple are sequence types. Usually maintain a left-to-right order. Strings & tuples are immutable. Lists are mutable.

Category: Notes

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Exiting bash history (reverse-i-search) search mode?

October 26, 2018October 26, 2018 Written by Albert

In Mac OS X Terminal I used CTRL+R to enter a reverse history search. However, if the command I want was not found (after repeated CTRL-R), then there must be a way to immediately exit back to the (empty) command prompt. Especially, with no historical command entered. Better yet, I haven’t executed anything on the command […]

The Key to Algorithm Proficiency

January 26, 2017January 26, 2017 Written by Albert

I’m going to try this strategy. I am thinking about creating another account on codewars just for practice. Maybe that will help me with remembering algorithms and improve my code efficiency. Remember, I need to do very well so I can command a good paying salary. Income is key here to escape my retail enslavement. […]

Facebook obliterated!

December 10, 2017December 10, 2017 Written by Albert

BookFaced. Social Media purge part 2 14 more days and it will be completely erased from 1 of their many server farms.

log files for postgreSQL, Nginx, Django and gunicorn

November 4, 2018November 4, 2018 Written by Albert

postgreSQL :

/var/log/postgresql/postgresql-10-main.log

1	/var/log/postgresql/postgresql-10-main.log

Nginx:

var/log/nginx/access.log

1	var/log/nginx/access.log

Django: Add this first to settings.py

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'filters': {
        'require_debug_false': {
            '()': 'django.utils.log.RequireDebugFalse'
        }
    },
    'handlers': {
        'applogfile': {
          'level':'DEBUG',
          'class':'logging.handlers.RotatingFileHandler',
          'filename': '/var/log/django.log',
          'maxBytes': 1024*1024*15, # 15MB
          'backupCount': 10,
        }
    },
    'loggers': {
        'django.request': {
            'handlers': ['applogfile'],
            'level': 'ERROR',
            'propagate': True,
        },
    }
}

LOGGING = {

'version': 1,

'disable_existing_loggers': False,

'filters': {

'require_debug_false': {

'()': 'django.utils.log.RequireDebugFalse'

}

'handlers': {

'applogfile': {

'level':'DEBUG',

'class':'logging.handlers.RotatingFileHandler',

'filename': '/var/log/django.log',

'maxBytes': 1024*1024*15, # 15MB

'backupCount': 10,

}

'loggers': {

'django.request': {

'handlers': ['applogfile'],

'level': 'ERROR',

'propagate': True,

}

then check here:

'/var/log/django.log

1	'/var/log/django.log

Gunicorn:

/var/log/gunicorn_access.log

1	/var/log/gunicorn_access.log

Use the command cat or tail to see the output.