/* file name is endno1.c */
* should*/ int i; 10002
/*should not*/ int j;
/*should not*/ int k;
/* should*/ int m; 20002

##</code><code>##

int i;
int j;
/* 10th line = 20 */ int k;
/*should*/ int m; 20005

##</code><code>##

find . -name "*.c" -exec cat {} \; |perl -ne 'print $1\n" if $_ =~ /(.*)\d+$/'

##</code><code>##

/*should*/ int m; 2000
/* should*/ int i; 1000
/* should*/ int m; 2000

##</code><code>##

find . -name "*.c" -exec cat {} \; |perl -ne 'print $1\n" if $_ =~ /(.*)(.*?(?=\d))$/'

##</code><code>##

/* 10th line = 2 */