如何提取以星号包围的行？

fh21_xuejinlian

awk '/\*+/{getline;a=$0;getline;if($0~/\*+/)print a;a=b}'  file

moperyblue

1. sed '/*/,/*/!d;//d'
   
2. sed '/*/,/*/{//d;b};d'
   
3. sed 't;/*/{N;N;s/\n[^\n]*$//;D};d'
   
4. sed '/*/{/\n/!{N;N};/*\n/D;P};d'
   
5. grep -oPz '\*\n\K.*(?=\n\*)'
   
6. awk '/*/{getline;print;getline}'

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StarWingsss

如果只是针对这个问题
a=$(cat file |wc -l)
cat file |tr -s "*" |xargs -n $a|awk -v FS="*" '{$1=$1;print $2,"\n",$4}'

butterflyswim

1. egrep -v "\*|x" file

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