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use find to grep all .c files from the target directory, cat them into one stream, then piped to wc to count the lines
There are 2 alternatives - vote for the best!
This is really fast :)
time find . -name \*.c | xargs wc -l | tail -1 | awk '{print $1}'
204753
real 0m0.191s
user 0m0.068s
sys 0m0.116s
Have wc work on each file then add up the total with awk; get a 43% speed increase on RHEL over using "-exec cat|wc -l" and a 67% increase on my Ubuntu laptop (this is with 10MB of data in 767 files).
If you can do better, submit your command here.
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To ignore whitespace only lines in the count, use grep which can both search and count:
find . -type f -name "*.c" -exec cat {} + | grep -Evc '^[:space:]*$'This will also be faster due changing \; to +.
Yeah, using + at the end of -exec is much faster than \;
Thanks