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How to Read a CSV File from Amazon S3 Using Python (With Headers and Rows Displayed)

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  Introduction If you’re working with cloud data, especially on AWS, chances are you’ll encounter data stored in CSV files inside an Amazon S3 bucket . Whether you're building a data pipeline or a quick analysis tool, reading data directly from S3 in Python is a fast, reliable, and scalable way to get started. In this blog post, we’ll walk through: Setting up access to S3 Reading a CSV file using Python and Boto3 Displaying headers and rows Tips to handle larger datasets Let’s jump in! What You’ll Need An AWS account An S3 bucket with a CSV file uploaded AWS credentials (access key and secret key) Python 3.x installed boto3 and pandas libraries installed (you can install them via pip) pip install boto3 pandas Step-by-Step: Read CSV from S3 Let’s say your S3 bucket is named my-data-bucket , and your CSV file is sample-data/employees.csv . ✅ Step 1: Import Required Libraries import boto3 import pandas as pd from io import StringIO boto3 is...
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vi Editor Top Commands for Ubuntu OS

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I have given VI editor commands to use in Ubuntu operating system. You can practice using them for your benefit and you can complete your work quickly.

Ubuntu vi editor commands

To begin changing or adding to text with vi, you can enter Insert or Replace modes, as shown in the following list. When you enter Insert or Replace mode, the characters you type will appear in the text document (as opposed to being interpreted as commands). 

vi filename

This is the first command to enter into editor mode. Once you enter into editor mode, you need to enter other commands to complete your editing work.

Press the Esc key to exit to Normal mode after you are done inserting or replacing text.

List of VI Editor Commands..

i—Typed text appears before current character.
a—Typed text appears after current character.
o—Open a new line below current line to begin typing.
s—Erase current character and replace with new text.
c?—Replace ? with l, w, $, or c to change the current letter, word, end of line, or line.
r—Replace current character with the next one you type.
Shift+i—Typed text appears at the beginning of current line.
Shift+a—Typed text appears at the end of current line.
Shift+o—Open a new line above current line to begin typing.
Shift+s—Erase current line and enter new text.
Shift+c—Erase from cursor to end of line and enter new text.
Shift+r—Overwrite as you type from current character going forward.

Shortcut keys to delete or paste


x—Delete text under cursor.
d?—Replace ? with l, w, $, or d to cut the current letter, word, or end of line from cursor or entire line.
y?—Replace ? with l, w, or $ to copy (yank) the current letter, word, or end of line from cursor.
p—Pastes cut or yanked text after cursor.
Shift+x—Delete text to left of cursor.
Shift+d—Cut from cursor to end of line.
Shift+y—Yank current line .
Shift+p—Pastes cut or yanked text before cursor.

How to Save VI editor changes...

Press - Esc key
:x
Press Enter
Your work will be saved.


Summary

The above commands useful to work with VI editor. You can complete your task quickly and saves lot of time.

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