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As a junior software engineer, mastering key shortcuts, commands, and best practices can accelerate your growth. Here are 30 essential cheat codes to level up your skills:
You Should Know:
1. Git Shortcuts
git clone <repo-url> Clone a repository git checkout -b <branch> Create and switch to a new branch git stash Temporarily save uncommitted changes git log --oneline View concise commit history
2. Linux Commands for Developers
grep "pattern" file.txt Search for text patterns find / -name ".log" Find files by name chmod +x script.sh Make a file executable ps aux | grep "process" Check running processes
3. Debugging Like a Pro
Python Debugging python -m pdb script.py JavaScript (Node.js) node --inspect-brk app.js
4. Database Queries
-- Find slow queries in PostgreSQL SELECT query, total_time FROM pg_stat_statements ORDER BY total_time DESC LIMIT 10;
5. Docker Essentials
docker ps -a List all containers docker logs <container> View container logs docker-compose up -d Start services in detached mode
6. Networking Basics
ping google.com Check network connectivity netstat -tuln List open ports curl -I https://example.com Check HTTP headers
7. System Performance
top Monitor system processes df -h Check disk space free -m Check RAM usage
8. Security Checks
nmap -sV <target-ip> Scan for open ports and services openssl s_client -connect example.com:443 Check SSL certificate
9. Automating Tasks
Cron job to run a script daily 0 3 /path/to/script.sh
10. Cloud CLI (AWS, GCP, Azure)
aws s3 ls List S3 buckets gcloud compute instances list List GCP instances az vm list --output table List Azure VMs
What Undercode Say:
Mastering these commands and shortcuts will save hours of manual work. Always document your learnings, automate repetitive tasks, and stay updated with new tools.
Expected Output:
A well-structured cheat sheet for junior developers to improve efficiency in Git, Linux, debugging, Docker, networking, and security.
Relevant URL:
References:
Reported By: Nk Systemdesign – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
