- Efficiency: Command-line interfaces (CLI) can be more efficient for many tasks, allowing you to perform complex operations with simple commands.
- Instantly move multiple files
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mv *.jpg /home/user/backup/images/
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- Instantly move multiple files
- Control: Offers greater control over your system, enabling you to customize and automate processes easily.
- Quickly find all files larger than 50MB and list them by size in a human readable format
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find . -size +50M -exec ls -lh {} \; | sort -hr
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- Quickly find all files larger than 50MB and list them by size in a human readable format
- Versatility: Linux commands can be used across various distributions (like Ubuntu, CentOS, Debian), making your skills transferable.
- Commands which works exactly the same way across multiple Linux systems
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df -h
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- Commands which works exactly the same way across multiple Linux systems
- Troubleshooting: CLI skills are essential for troubleshooting and fixing issues that aren’t easily resolved through graphical interfaces.
- System is too slow? Run easy to remember commands to instantly see a live of the processes consuming the most CPU and memory –
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top
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- System is too slow? Run easy to remember commands to instantly see a live of the processes consuming the most CPU and memory –
- Automation: Powerful scripting capabilities (using bash, sh, etc.) allow you to automate repetitive tasks and boost productivity.
- Easy write Bash scripts to automatically backup your website’s database every night at 2 AM for instance –
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#!/bin/bash pg_dump mydatabase | gzip &> /var/backups/db_$(date +"%Y%m%d").gz find /var/backups/ -mtime +7 -delete
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- Easy write Bash scripts to automatically backup your website’s database every night at 2 AM for instance –
- Resource Management: Allows for better management of system resources and performance monitoring.
- See if a specific application is running
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ps aux | grep firefox
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- See if a specific application is running
- Development: Many development environments and tools are native to Linux, providing a robust platform for coding and deployment.
- Command-line native tools for modern development workflow
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npm install npm build npm serve git status git commit -am 'fix typo' git push docker build
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- Command-line native tools for modern development workflow
- Servers: Most servers run on Linux, so understanding commands is crucial for managing web servers, databases, and other infrastructure.
- Website is down? ssh into a server and restart a service
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ssh user@webserver.com systemctl status nginx sudo systemctl restart nginx
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- Website is down? ssh into a server and restart a service
- Security: Linux commands provide strong tools for securing systems, monitoring network traffic, and managing user permissions.
- Restrict user access to specific services
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chmod 700 /home/user/private_data
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- Restrict user access to specific services
- Learning Curve: Mastering Linux commands can make learning other programming languages and tools easier, as many share similar syntax and concepts.
- Start with simple commands
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ls cat /etc/hosts id
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- Start with simple commands
