------------------------------------------------------ Tasks -----------------------------------------------

name = "prince"
dir(name)

x = 1
dir(x)

l = [1,2,3,4,5]
dir(l)

l = {"same": 30,"john": 20}
dir(l)

l = {"same": 30,"john": 20}
l.update({"chris": 1})
print(l)

file = open('access.log','r')
dir(file)

## Access log

##

file = open('access.log','r')

count = 1
for line in file:
  if count == 10:
    print(line)
    break
  count += 1
file.close()

## Advanced file opening method

count = 1
with open('access.log','r') as file:
  for line in file:
    if count == 10:
      print(line)
      break
    else:
      count += 1

## Tuple

persons = ['sam','devon','john','kevin']
persons.append("chris")
print(persons)

dir(persons)

print("before -", persons)
persons.insert(1,'prince')
print(persons)

##

persons[1] = "vysakh"
print(persons)

persons.remove('devon')
print(persons)

x = persons.pop(3)
print(x)

##

t = ('sam', 'vysakh', 'sam','john', 'kevin',1,2,3,4)
print(t.count('sam'))
print(t.index('sam'))

##

t = ('sam',['vysakh', 'sam'],{'john': 20, 'kevin': 30})
print(len(t))

print(t[0])

print(t[1][0])

print (len(t[1]))

print(len(t[-1]))

t[1].append('prince')

print(t)

t[-1].update({'chris' : 50})
print(t)

## Directory listing

import os
print(os.listdir('/etc/apache2/'))

! tree /etc/apache2/

##

import os
import posixpath
directory = os.walk('/etc/apache2/')
for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    print(abspath)


## conf extension files

import os
import posixpath
directory = os.walk('/etc/apache2/')
for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    if abspath.endswith('.conf'):
      print(abspath)


## Total size in conf

import os
import posixpath
directory = os.walk('/etc/apache2/')
for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    if abspath.endswith('.conf'):
      size = posixpath.getsize(abspath)
      out = "{} - {}".format(abspath,size)
      print(out)

## Size = zero

import os
import posixpath
directory = os.walk('/etc/apache2/')
for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    size = posixpath.getsize(abspath)
    if size == 0:
      print(abspath,size)

## shutil

import shutil
shutil.copy('access.log','/home/ec2-user/')

! ls /home/ec2-user/

## Copying confs to a new directory

import os
import posixpath
import shutil

directory = os.walk('/etc/apache2/conf-available/')

for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    if not os.path.exists('./backup'):
      os.makedirs('./backup')
      print(os.listdir('./backup'))
    shutil.copy(abspath,'./backup/')
print(os.listdir('./backup'))

## Copying extensions

import os
import posixpath
import shutil

directory = os.walk('/home/ec2-user/backup')

for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    *_,x = posixpath.splitext(abspath)
    ext = x.lstrip(".")
    print(ext)
    break
  break

##
import os
import posixpath
import shutil
mydict = {}

directory = os.walk('/home/ec2-user/backup')

for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    *_,x = posixpath.splitext(abspath)
    ext = x.lstrip(".")
    if ext not in mydict:
      mydict[ext] = [abspath]
    else:
      mydict[ext].append(abspath)
print(mydict)

print(mydict['mov'])

! mkdir -p /home/ec2-user/backup/english/old && cd /home/ec2-user/backup/english/old && touch movies-old{1..5}.mov && touch movies-new{1..5}.mp4


print(mydict['mov'])

## Additional directories

import os
import posixpath
import shutil
mydict = {}

directory = os.walk('/home/ec2-user/backup')
root = '/home/ec2-user/'

for item in directory:
  maindir,subdir,files = item
  for file in files:
    abspath = posixpath.join(maindir,file)
    *_,x = posixpath.splitext(abspath)
    ext = x.lstrip(".")
    new = posixpath.join(root,ext)
    if not os.path.exists(new):
      os.mkdir(new)
    if abspath.endswith(ext):
      shutil.copy(abspath,(posixpath.join(root,ext)))