# Useful Libraries

## Executing commands

### subprocess

```python
import subprocess

# Executing the "ls -la"  command:
s = subprocess.Popen(["ls", "-la"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

# unpacking the stdout and stderr
data, err = s.communicate()      

# printing the data to stdout
print(data)
```

### os.system

```python
import os

username = 'root'
ip_address = '10.10.10.161'

# Using os.system to ssh to a remote box
shell = "ssh -i " + '$HOME/.ssh/id_rsa ' + username+"@"+ip_address
os.system(shell)
```

## Fancy Printing and Color

### tabulate

```python
pip3 install tabulate

#!/usr/bin/env python3
from tabulate import tabulate

table = [[‘bacon’, 10], [‘eggs’, 12], [‘pancakes’, 8]]
Headers = [‘items’, ‘qty’]

print (tabulate(table, headers, tablefmt=‘fancy_grid’))
╒══════════╤═══════╕
│ items   │   qty │
╞══════════╪═══════╡
│ bacon   │    10 │
├──────────┼───────┤
│ eggs    │    12 │
├──────────┼───────┤
│ pancakes │     8│
╘══════════╧═══════╛

# Example: tabulate(table, stralign=“center”, tablefmt=“fancy_grid”, headers=“firstrow”)
```

### termcolor

```python
from termcolor import colored


print colored('*********** Webmin 1.910 Exploit By roughiz*********', "blue")
print colored('****************************************************', "blue")
print colored('****************************************************', "blue")
print colored('****************************************************', "blue")
print colored('*********** Retrieve Cookies sid *******************', "blue")
```

## Graphing and Plotting Data

### matplotlib

```python
# To install the library
pip3 install matplotlib


# The code
import matplotlib.pyplot as plt

year = [1950, 1960, 1970, 1980]
pop = [2.519, 3.692, 5.263, 6.972]

plt.plot(year, pop)
plt.xlabel('Year')
plt.ylabel('Population')
plt.title('World Population Projection')

#You can also do the following to change the ticks
#This will make the y axis show in "B" Billions
plt.yticks([0,2,4,6,8,10], ['0', '2B','4B','6B','8B','10B'])

plt.show()
```

![](https://3391461163-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M-SeUOaaky_0dmtDTFu%2F-M1Ck4y9DNgemckeRrvM%2F-M1ClxY9KvNqYoAp5f1P%2Fimage.png?alt=media\&token=ce5ba1ef-5bb7-4cf4-9b29-25a052af038e)


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