Get first and last line of file


bash way
(head -1; tail -1) < /etc/passwd

sed way
sed -n '1p; $p' /etc/passwd

awk way
awk 'NR==1; END { print }' /etc/passwd
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Apt error Could not get lock /var/lib/apt/lists/lock

  sudo fuser -vik -TERM /var/lib/apt/lists/lock  

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