Linux sysadmin from India . Daily tips on Linux, Bash, SSH, AWS, DevOps & Tech News from 20+ yrs in the terminal. One practical command every day.
India
Joined December 2014
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Quick Linux Tip 60 - How to Backup MySQL Database in Linux Without Downt... youtu.be/SW5qeQQbU6c?si=ewTo…
Quick Linux Tip #115
Q: A buggy script is eating all my RAM. How do I cap its memory usage?
Try:`ulimit -v 524288`
Info: Restricts virtual memory for the current shell session and its child processes.
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Linux Fundamentals for Beginners: What is Linux & RHEL? youtu.be/Rfl6ADQA9SY?si=xbVR…
Networking Protocols Explained: The 5-Stop Packet Journey (DNS to NTP) youtu.be/Kl5VAK7D6OY?si=oN6d…
Quick Linux Tip 59 - How to Check When a File Was Last Accessed in Linux... youtu.be/82IGa0EqFqs?si=nWxc…
Quick Linux Tip #114
Q: How do I check SSL certificate expiry dates on all my servers in bulk?
Want to master Linux one command at a time?
Follow @linuxteck - 1 practical Linux tip every day. For more #LinuxTips click here linuxteck.com/linux-tips/
Quick Linux Tip 58 - Is your bash script leaking memory? Check in ONE line youtu.be/PKnaAv5vssE?si=cInw…
Quick Linux Tip #113
Q: My script is slow but I don't know if it's CPU, I/O, or waiting. How do I find out?
Try:`/usr/bin/time -v ./slow_script.sh 2>&1 | grep -E 'Elapsed|CPU|Maximum|context|wait'`
Info: Profiles resource bottlenecks, CPU, and timing.
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How to fix a full Linux disk when du doesn't add up (lsof +L1) youtu.be/RMkJMp9g2Zk?si=GZYs…
Quick Linux Tip 57 - SSH through 2 jump hosts in ONE command youtu.be/vTBJZF03N2s?si=UUXH…
