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15 Python Tips : How to Write Code Effectively

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 Here are some Python tips to keep in mind that will help you write clean, efficient, and bug-free code.     Python Tips for Effective Coding 1. Code Readability and PEP 8  Always aim for clean and readable code by following PEP 8 guidelines.  Use meaningful variable names, avoid excessively long lines (stick to 79 characters), and organize imports properly. 2. Use List Comprehensions List comprehensions are concise and often faster than regular for-loops. Example: squares = [x**2 for x in range(10)] instead of creating an empty list and appending each square value. 3. Take Advantage of Python’s Built-in Libraries  Libraries like itertools, collections, math, and datetime provide powerful functions and data structures that can simplify your code.   For example, collections.Counter can quickly count elements in a list, and itertools.chain can flatten nested lists. 4. Use enumerate Instead of Range     When you need both the index ...

How to Write Recursive Shell Script in Bash Terminal

Bash Recursive Function How to Write it Quickly


Here's a simple bash recursive function. To write it, you can use JavaScript and other scripting languages. Below is the example that shows you how to write a recursive function in the bash shell.

Recursive function

Precisely, calling the same function within it is called the Recursive function. We call itself and its contents. 

Moreover, the recursive functions go in the loop due to self-calling. While writing the code, ensure it has a condition that breaks the loop.

Recursive logic


#!/bin/bash
for ((i = 1; i < 65; i++))
{ ((arr[i - 1] = i)) } i = 1;
key = 8

function linear_search {
echo "Element value: ${arr[$i-1]}"
if ((arr[i - 1] == key)) then
echo "Linear search found $key on attempt $i" return 0 => it breaks the loop
else ((i++)) linear_search = > Calling th same script fi
}
linear_search = > Calling the same script

Output

Here is the dissection of the output. Displayed the array's elements until match-condition occurs. In the end, a display statement tells at which point the condition is satisfied.


Shell script


Summary

  • The For Loop's purpose is to get elements one by one
  • The "arr" is a keyword for an Array in bash
  • The i-1 is to calculate an index for the array

References

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