只显示文本内容的偶数行的shell

sed '1d;n;d'  status.txt
sed -n 'n;p' status.txt
sed -n '0~2p' status.txt
awk '!(NR%2)' status.txt
awk 'i++%2' status.txt
awk '!(i=i?0:1)' status.txt
awk '!(i=!i)' status.txt