curs_sp_funcs - Linux


curs_sp_funcs finds special functions by searching a cursor’s buffer for regular expressions. It’s invaluable for developers using a command line interface or text editor, allowing them to effortlessly locate and operate on specific text patterns.


curs_sp_funcs [options] <FUNCTION> <CURSOR_MARK> <CURSOR_MARK>


  • -a, –all: Find all occurrences of the function within the buffer.
  • -n, –number: Print the line number of each occurrence.
  • -s, –silent: Don’t display any output, only return success code.
  • -f, –follow: Follow the cursor as it moves and update results.
  • -e, –regex: Specify a custom regular expression to match.
  • -h, –help: Display usage information and exit.


Find all occurrences of the main() function in the current buffer:

curs_sp_funcs main

Find the line number of the next occurrence of the foo() function:

curs_sp_funcs -n foo $HOME/test.txt

Use a custom regular expression to find functions matching a specific pattern:

curs_sp_funcs -e '^_?[A-Za-z_]+\(...\)$'

Common Issues

  • If no matches are found, curs_sp_funcs returns an error message.
  • Incorrect regular expressions can lead to unexpected results.
  • When using the -f option, ensure the cursor is in the correct position before executing the command.


  • Combine with grep to filter results based on additional criteria.
  • Use with sed or awk for advanced text manipulation.
  • As part of a script or command chain to automate complex tasks.

Related Commands

  • grep: Find text patterns in files and buffers.
  • sed: Stream editor for text editing.
  • awk: Pattern-based text processing tool.