Extract tar.gz linux

Generate random password openssl rand -base64 32 Check certificate details openssl s_client -connect example.com:443 </dev/null 2>/dev/null | openssl x509 -noout -dates -subject Awk — sum a column awk '{sum += $3} END {print sum}' file.txt Sed — replace in file sed -i 's/old-string/new-string/g' file.txt Sort and deduplicate sort file.txt | uniq -c | sort -rn | head -20