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Useful Linux and Unix commands

Debian/Ubuntu Useful Commands

Check OS version

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cat /etc/os-release

Search text from terminal

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grep -rnwi '/path/file.js' -e 'keyword_not_case_sensitive'

Show some logs, contents from line X to Y

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X=1  
Y=5
sed -n -e "$X,$Y p" -e "$Y q" file_name.txt

Kill a process on a specific port

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sudo kill -9 30 // Kill process ID = 30
sudo kill -9 $(sudo lsof -t -i:8080) // Find process on port 8080 and kill it

Alpine Useful Commands

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References

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