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Python: Built-in Functions vs. For & If Loops – 5 Programs Explained

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Python’s built-in functions make coding fast and efficient. But understanding how they work under the hood is crucial to mastering Python. This post shows five Python tasks, each implemented in two ways: Using built-in functions Using for loops and if statements ✅ 1. Sum of a List ✅ Using Built-in Function: numbers = [ 10 , 20 , 30 , 40 ] total = sum (numbers) print ( "Sum:" , total) 🔁 Using For Loop: numbers = [ 10 , 20 , 30 , 40 ] total = 0 for num in numbers: total += num print ( "Sum:" , total) ✅ 2. Find Maximum Value ✅ Using Built-in Function: values = [ 3 , 18 , 7 , 24 , 11 ] maximum = max (values) print ( "Max:" , maximum) 🔁 Using For and If: values = [ 3 , 18 , 7 , 24 , 11 ] maximum = values[ 0 ] for val in values: if val > maximum: maximum = val print ( "Max:" , maximum) ✅ 3. Count Vowels in a String ✅ Using Built-ins: text = "hello world" vowel_count = sum ( 1 for ch in text if ch i...
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The Real Command to Wrap Text in Linux

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Fold command in Linux

Here is a command to wrap text in Linux. The wrapping means it prints it in fixed-width column. More importantly, it will not consider spaces between words. The command you need is FOLD.  

Fold command in Linux

Below, you will find two examples on usage of the FOLD command. These are helpful for your project where you need to write a shell script.

Example-1

The following command displays a set of lines with ten characters in each line:

x="aa bb cc d e f g h i j kk ll mm nn" 
echo $x | fold -10

The output of the preceding code snippet is here:

aa bb cc d e f g h i j kk ll m m nn

Example-2

As another example, consider the following code snippet:


x="The quick brown fox jumps over the fat lazy dog. " 
echo $x | fold -10

The output of the preceding code snippet is here:

The quick brown fox jumps over the fat l azy dog.

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