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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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How to Send Shell script Result to Email

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The shell-script result you can send to email. Below, you will find the steps you need to do it. There are two steps and both will help you know the entire process. Sending shell-script results to email Creating shell-script Sending the result to email 1. Creating shell-script Create an empty script Create test1.sh script using the vi command with the Sudo command. $sudo vi test1.sh Write the first line in the script #!/bin/bash exec > out1.txt 2>&1 Add logic in the shell script #!/bin/bash exec > out1.txt 2>&1 echo" Here is my logic" Provide executable permissions to your script $ sudo chmod +x test1.sh Run your script using the command below $ ./test1.sh Verify the output $ cat out1.txt 2. Sending result to email Use the below command to send the output (result) to email. $ mail <<output file path name>> abc@gmail.com Bottom-line These steps are helpful to send the output to an email.  References How to Install Mailx Utility in Linux
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