否定地址范围

$ cat ip.txt 
address
range
substitution
1234
search pattern
sample
Add Sub Mul Div

• 删除指定地址以外的行

  $ sed '/[0-9]/!d' ip.txt 
  1234
  
  $ sed -n '/[0-9]/p' ip.txt 
  1234
  
  $ sed '$!d' ip.txt 
  Add Sub Mul Div
  
  $ sed -n '$p' ip.txt 
  Add Sub Mul Div
  

• 搜索和替换与模式不匹配的行

  $ sed '/ /! s/^/#/' ip.txt 
  #address
  #range
  #substitution
  #1234
  search pattern
  #sample
  Add Sub Mul Div
  
  $ sed '/add/,/sub/! s/[aeiou]//gi' ip.txt 
  address
  range
  substitution
  1234
  srch pttrn
  smpl
  dd Sb Ml Dv