Manual: grepc

grepc(1)					   General Commands Manual					    grepc(1)

NAME
       grepc - find declarations, definitions, and uses in source code

SYNOPSIS
       grepc [option ...] pattern [file ...]

DESCRIPTION
       grepc(1) searches for declarations, definitions, and/or uses of pattern in each source file.

       pattern	is  a PCRE pattern.  It normally represents an identifier, and word boundaries are implicitly added to it in
       most cases.

       If no file is given, this program reads standard input.	Otherwise, it reads all files specified, and searches  under
       any specified directories, recursively, without following symbolic links.

OPTIONS
       -A n   Print n lines of trailing context after a match.

       -B n   Print n lines of leading context before a match.

       -C n   Print n lines of context surrounding a match.

       -c     Do not print matches, and instead print a count of them.

       -h     Suppress the prefixing of file names on output.

       -i     Ignore case distinctions in pattern.

       -l     Suppress	normal	output; instead print the name of each input file from which output would normally have been
	      printed.	Each file is only printed once.

       -m n   Stop processing after finding n matches.

       -n     Prefix each line of output with the 1-based line number within its input file.

       -t type
	      Restrict the search to a specific type of code.  This option can be passed multiple times to search for  vari‐
	      ous  types  of code.  The acceptable values depend on the driver used for the language.  See grepc_c(1), which
	      is the default driver.

CAVEATS
   Crashes
       In some cases, internal calls to pcre2grep(1) may fail after consuming too much resources.  To solve that, use -t  to
       restrict the types of code of your search.

   Seekable files
       Files specified in the command line must be seekable and able to be opened twice.  If you need to read a non-seekable
       file, redirect it to the standard input.

EXAMPLES
       alx@devuan:/usr/lib/gcc$ grepc -n alignof .;
       ./x86_64-linux-gnu/15/include/stdalign.h:33:#define alignof _Alignof

SEE ALSO
       grepc_c(1), pcre2grep(1), pcre2syntax(3), pcre2pattern(3)

Linux man-pages 6.17					 2025-11-09						    grepc(1)