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#include <stdio.h>
//#include <stdlib.h> //for system pause

//USAGE (in DOS):   dir blah | yourProgramName > outFile.txt
// (use /b for JUST file and folder names)
// (use /b /ad for JUST folder names)

void printsln(char *s) {printf("%s
", s);}

void error(char *s){printsln(s); exit(1);}

bool ngets(char *s, int n) {
int i = 0;
char c;
c = getchar();
if (c==EOF) {s[i] = 0; return false;}
while(c!='
'){
if(i>=n) error("input stream overflowed buffer");
s[i++] = (char)c;
c = getchar();
}
s[i] = 0;
return true;
}

int main(int argc, char *argv[])
{
char s[10000]; //note: possible (in theory) security hole
while(ngets(s, 10000)) { //security hole closed.

printf("/new/%s
", s, s);  //TWEAK THIS LINE!!!

}
//system("pause");
return 0;
}

source