在ubuntu中使用sed命令搜索和删除块

Question

The thing I would like to perform is to 1- Find and 2- delete the whole definition block of (__c64):

unsigned long long __c64(unsigned int llvm_cbe_hi, unsigned int llvm_cbe_lo) {
unsigned long long llvm_cbe_retval;    /* Address-exposed local */
unsigned long long llvm_cbe_retval1;



  *(&llvm_cbe_retval) = (((((unsigned long long )(unsigned int )llvm_cbe_hi)) << 32ul) |  (((unsigned          long long )(unsigned int )llvm_cbe_lo)));
  llvm_cbe_retval1 = *(&llvm_cbe_retval);
  return llvm_cbe_retval1;
}

in all but one .c files in a project. Since in the compilation phase of .o to the executable, I got the error "Multiple definition of __c64", I was thinking to delete all of those but one in order to solve the problem.

Any ideas?

Regards,

Amir

Answer 1

If function layout is exactly same in all files you can try this

gvim -p *.c    // Open all relevant files in multiple tabs

then execute this

:bufdo %s/unsigned long long __c64\(.\+\n\)\+\(\n\)\+\(.\+\n\)\+}// | update

"update" executed at the end will save each file.

Answer 2

guys as I found the definitions were dynamically changed, I tried to figure out sth like :

sed '/^unsigned long long __c64/,/}/d'

and it did fortunately work.

Thanks for all the helps.

Amir