ned

Is like grep but with powerful replace capabilities. Unlike sed, as it isn't restricted to line oriented editing. More information: https://github.com/nevdelap/ned.

• Recursively search starting in the current directory, ignoring case:
  ned --ignore-case --recursive '{{^[dl]og}}' {{.}}
• Search always showing colored output:
  ned --colors '{{^[dl]og}}' {{.}}
• Search never showing colored output:
  ned --colors=never '{{^[dl]og}}' {{.}}
• Search ignoring certain files:
  ned --recursive --exclude '{{*.htm}}' '{{^[dl]og}}' {{.}}
• Simple replace:
  ned '{{dog}}' --replace '{{cat}}' {{.}}
• Replace using numbered group references:
  ned '{{the ([a-z]+) dog and the ([a-z]+) dog}}' --replace '{{the $2 dog and the $1 dog}}' {{.}}
• Replace changing case:
  ned '{{([a-z]+) dog}}' --case-replacements --replace '{{\U$1\E! dog}}' --stdout {{.}}
• Preview results of a find and replace without updating the target files:
  ned '{{^[sb]ad}}' --replace '{{happy}}' --stdout {{.}}