csearch - like grep(1) over all indexed files

       This  manual  page was written by Michael Stapelberg <stapelberg@debian.org>, for the Debian project (and
       may be used by others).

                                                   2013-06-23                                         CSEARCH(1)

       Csearch  behaves  like  grep  over  all indexed files, searching for regexp, an RE2 (nearly PCRE) regular
       expression.

       The -c, -h, -i, -l, and -n flags are as in grep, although note that as per Go's flag parsing  convention,
       they cannot be combined: the option pair -i -n cannot be abbreviated to -in.

       The -f flag restricts the search to files whose names match the RE2 regular expression fileregexp.

       Csearch  relies  on  the existence of an up-to-date index created ahead of time.  To build or rebuild the
       index that csearch uses, run:

            cindex path...

       where path... is a list of directories or individual files to be included  in  the  index.  If  no  index
       exists,  this  command  creates  one. If an index already exists, cindex overwrites it. See cindex(1) for
       more details.

       Csearch  uses  the  index  stored  in  $CSEARCHINDEX  or,  if  that   variable   is   unset   or   empty,
       $HOME/.csearchindex.

       csearch - like grep(1) over all indexed files

-c     Suppress normal output; instead print a count of matching lines for each input file.

       -ffileregexp
              Restricts the search to files whose names match the RE2 regular expression fileregexp.

       -h     Suppress the prefixing of file names on output.

       -i     Ignore case distinctions in both the regexp and the input files.

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

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

cindex(1), cgrep(1), grep(1).

csearch [-c] [-f fileregexp] [-h] [-i] [-l] [-n] regexp