Count rows in shell

Today I suddenly wondered how many lines of code I had written recently, and then I used the shell to figure out the most recent code:

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1	Find/home/chengshuguang/mango-maxdepth 1-name ' *.c '-or-name ' *.cpp '-or-name ' *.h ' | Xargs wc-l

which

1. -maxdepth 1 means that only the directory is searched down, that is, no recursion. Similarly, 2 indicates a Level 2 directory.

2. Xargs its role is to convert the argument list to small pieces to pass to other commands to avoid an issue where the argument list is too long.

3. If you do not want to count empty rows, you can actually do this:

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1 2 3

Find. -name "*.M"-or-name "*.h" |xargs grep-v "^$" |wc-l grep-v "^$" means to strip empty rows

Count rows in shell