When you are just interested into number of lines in a file to make some decision based on it, in Linux using command you can know the same very easily. For an example, we have used simple C program with addition as a text file.
Using “wc” command
You can use “wc” command with “-l” option passed, so that it can print only new line counts on terminal as,
$ wc -l helloworld.c
8 helloworld.cUsing “cat” command
You can also use the “cat” command to print the line numbers of the file, and at the end you will see the total number of lines.
$ cat -n helloworld.c 1 #include <stdio.h>
2
3 int main(int argc, char **argv) {
4 int a = 5, b = 7, sum = 0;
5 sum = a + b;
6 printf("Total is : %d", sum);
7 return 0;
8 }