count lines in bash script
 

Hi,
I am new in bash scripting and I would like to help me if you could.

I have to create a bash script which find all tha files that their names match a pattern. For example *.h
and then print the number of lines of those files.

Any ideas????

Thanking you in advance

P.S. : sORRY FOR MY ENGLISH

pipe to "word count" with the "l" option

find [your options here] | wc -l

Thanks for the post .

I try : find *.h | wc -l
but the result is the numbers of files that have name .h
I would like the number of lines in these files . . .

Thanks a lot again

You want to pipe the results of the find as command-line parameters to wc, not pass the data in a pipeline.

find *.h -print0 | xargs -0 wc -l

It's what I need.

Thank you very much

well, if you wanted access to your script it a gui text editor you could always pipe it out to a text editor, and a free text editor like text wrangler displays how many lines are being used.

http://www.barebones.com/products/textwrangler/

so for example you could do this

This will output the script into a text editor of your choice, look through the man pages of open, which is a very nice utility in OS X.

That's what I meant to post.
(felt quite tired yesterday)

If I would like to appear only the total lines without printing the name of files and every number of lines how could I do this ?

Not sure I understand... you want the
total line count of all files that match?
Period?

awk 'END { print NR }' *.h

would be one way (of perhaps dozens).

Though certainly one of the more elegant solutions. :)

# Tony

I use grep to display the total lines
But I when I want to display the total lines of c files, I take as error

Arg list too long

Does anyone know to solve my prolem ??

in your previous posts, you had used find and said it works, now you are using grep. can you show what you have coded?

find *.h -print0 | xargs -0 wc -l | grep total

this statement
gives you line counts of every individual *.h found. A sample from my system:
therefore, if i want to find the total count, of ALL files found..I can total up the first column..
eg
this gives you total number of lines of all *.h files. If you want, pls show a sample of your find *.h -print0 | xargs -0 wc -l command...

Display ONLY the line count!
 

Ciao everybody.

In continuation to the discussion, I have a further question.
Using the previous discussion, I could get the following info.

$ find *.sh -print0 | xargs -0 wc -l
89 cron_script.sh
159 cron_submit.sh
184 lee_matmult.sh
82 lee.sh
19 mat_mult.sh
90 newscript.sh
52 post_op.sh
5 read.sh
224 script_submit.sh
325 trial.sh
238 tut.sh
1467 total
$

I want to get only the numbers, say like this
89
159
184
52

...
etc.

How the numbers are displayed, does not matter.
It will suffice if each number gets printed on a separate line.

Could anybody help, please!

If you want the first "column", where columns are separated from each other by a space, pipe it through: cut -d' ' -f1

For what it's worth, the wc -l command does not count lines that begin with #

Please explain where you drew this conclusion from.
E.g. show us an example of a text file with a line beginning with # and then show us the results of 'wc -l' on that file.

What you said is certainly not true in general (of 'wc') so either you have some weird version of 'wc' or you have misinterpreted something.

Hmm, maybe it's only omitting the first line because it's calling the bash shell in these files. :confused:

I think the problem is that there is no end-of-line character at the end of the last line in those text files. I think 'wc -l' merely counts the number of new-line characters in the file.
I.e. it's nothing to do with the # character.

If you don't understand what I mean, look at the contents of those files using something like 'hexdump'.
You can usually configure your editor to always have a new-line at the end of a text file (that you create with that editor) - this is a good idea.