Script using find to count lines of code

I'm trying to create a shell script that will count the number of lines of code in one folder.

I got this:

h=find . -type f -name \*.[h]* -print0 | xargs -0 cat | wc -l
m=find . -type f -name \*.[m]* -print0 | xargs -0 cat | wc -l

expr $m + $h

But when I'm trying to run it I get this:

lines-of-code: line 6: .: -t: invalid option
.: usage: . filename [arguments]
   0
lines-of-code: line 7: .开发者_Python百科: -t: invalid option
.: usage: . filename [arguments]
   0
+

I know I have to do something to make it run on the specific folder I'm in. Is this even possible?

DDIYS (don't to it your self) Use cloc instead. Excelent tool written in perl that does the counting for you as well as a other things. It recognizes more than 80 languages.

Example output:

prompt> cloc perl-5.10.0.tar.gz
    4076 text files.
    3883 unique files.                                          
    1521 files ignored.

http://cloc.sourceforge.net v 1.50  T=12.0 s (209.2 files/s, 70472.1 lines/s)
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
Perl                          2052         110356         130018         292281
C                              135          18718          22862         140483
C/C++ Header                   147           7650          12093          44042
Bourne Shell                   116           3402           5789          36882
Lisp                             1            684           2242           7515
make                             7            498            473           2044
C++                             10            312            277           2000
XML                             26            231              0           1972
yacc                             2            128             97           1549
YAML                             2              2              0            489
DOS Batch                       11             85             50            322
HTML                             1             19              2             98
-------------------------------------------------------------------------------
SUM:                          2510         142085         173903         529677
-------------------------------------------------------------------------------

Quote the commands like:

h=$(find . -type f -name *.[h]* -print0 | xargs -0 cat | wc -l)

Please also have a look at sloccount for counting lines of code. You can install it on debian/ubuntu with sudo apt-get install sloccount

For this specific problem, I have a different solution:

find . -type f -print0 | wc --files0-from=-

May be I misunderstood the question, but does this work for you?

wc -l *.[mh]*

Now it works!

h=$(find . -type f -name \*.[h]* -print0 | xargs -0 cat | wc -l)
m=$(find . -type f -name \*.[m]* -print0 | xargs -0 cat | wc -l)

expr $m + $h