findstr

Find specified text within one or more files. More information: https://learn.microsoft.com/windows-server/administration/windows-commands/findstr.

• Find space-separated string(s) in all files:
  findstr "{{query}}" *
• Find space-separated string(s) in a piped command's output:
  {{dir}} | findstr "{{query}}"
• Find space-separated string(s) in all files recur[s]ively:
  findstr /s "{{query}}" *
• Find strings using a case-insensitive search:
  findstr /i "{{query}}" *"
• Find strings in all files using regular expressions:
  findstr /r "{{expression}}" *
• Find a literal string (containing spaces) in all text files:
  findstr /c:"{{query}}" *.txt
• Display the line number before each matching line:
  findstr /n "{{query}}" *
• Display only the filenames that contain a match:
  findstr /m "{{query}}" *