Bash script for extracting function calls from c files

问题

I'm new to scripting, and I'm attempting to extract all function calls from a c files, all present in a directory. Here is my code so far, but it seems to be giving no output.

#!/bin/bash
awk '/[ \t]*[a-zA-Z_]*\(([a-zA-Z_]*[ \t]*,?)*\);/ {print $0}' *.c 

I'm stumped. Also the c files all have at least one function call.

回答1:

You should debug your regexp. Reduce it until you get some matches, then add again the other parts, checking if you get the expected results.

来源：https://stackoverflow.com/questions/17398732/bash-script-for-extracting-function-calls-from-c-files