Programming

output{
    printf "\033[$1m%$2\033[0m" $3 
}

int output(int clr,float val){  // Add in the format if possible
   switch (clr) {
      case 0: printf("%c[%dm %2.3f ", 0x1B, 33, val); // print Yellow (Lower than average usage)
        break;
      case 1: printf("%c[%dm %2.3f ", 0x1B, 32, val); // print Green (Medium)
        break;
      case 2: printf("%c[%dm %2.3f ", 0x1B, 31, val); // print Red  (High)
        break;
      case 3: printf("%c[%dm %2.3f ", 0x1B, 0, val); // print White  (All else)
        break;
    }
}

Hour Count APM AMBPM  MBytes
----+-----+---+-----+-------
  00   485   8  0.64   38.45
  01   511   9  0.06    3.51
  02   517   9  0.07    4.43
...

akshay@Aix:~/Desktop$ cat color.c
#include <stdio.h>

/* Following header files are not needed stdio.h is enough 
 #include <stdlib.h>
 #include <string.h> */

#define red     "\x1b[31m"
#define green   "\x1b[32m"
#define yell    "\x1b[33m"
#define blue    "\x1b[34m"
#define magneta "\x1b[35m"
#define cyan    "\x1b[36m"
#define reset   "\x1b[0m"

int main () {
	
        // Your value to be printed
	float testvalue = 125.25; 
      
        // precision
	int prec = 5;  
       
        // number of digits after decimal            
	int dig  = 3;   
       
        // 'f' for float           
	char c = 'f';   

        // this holds your format string...("%s...%f") etc          
	char format[10];  

        // Here we are creating your fmt string         
	sprintf(format, "%%s%%%d.%d%c%%s\n", prec, dig,c);
  	
        // Finally printing with different colors
	printf(format,red,testvalue,reset);
	printf(format,blue,testvalue,reset);
  	
}

akshay@Aix:~/Desktop$ gcc color.c

akshay@Aix:~/Desktop$ ./a.out 
125.250
125.250

#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char    format[128];    // internal printf format string
int     colors[] = {33/*yellow*/, 32/*green*/, 31/*red*/, 0/*black*/};

int
output(int clr, const char *fmt, ...) {
        va_list         ap;             // variable arguments list
        double          argd;           // double from argument list
        int             argi;           // int from argument list
        const char *    args;           // pointer to string from argument list
        char            cc;             // conversion character from fmt
        int             rc = 0;         // return code

        va_start(ap, fmt);
        cc = fmt[strlen(fmt) - 1];
        snprintf(format, sizeof(format), "\e[%dm%s\e[0m", colors[clr], fmt);
        switch(cc) {
        case 'd':       argi = va_arg(ap, int);
                        printf(format, argi);
                        break;
        case 'f':       argd = va_arg(ap, double);
                        printf(format, (float)argd);
                        break;
        case 's':       args = va_arg(ap, const char *);
                        printf(format, args);
                        break;
        default:        rc = 1;
                        break;
        }
        va_end(ap);
        return(rc);
}

int
main(int argc, char *argv[]) {
        int     APM;    // input APM
        float   AMBPM;  // input AMBPM
        int     Count;  // input count
        FILE    *fp;    // Input file pointer
        char    Hour[3];// input hour
        float   MBytes; // input MBytes
        int     n;      // # items read from input line

        if((fp = fopen(argc > 1 ? argv[1] : "file", "r")) == NULL) {
                snprintf(format, sizeof(format), "%s: fopen(%s) failed",
                        argv[0], argc > 1 ? argv[1] : "file");
                perror(format);
                exit(1);
        }
        printf("Hour Count APM AMBPM  MBytes\n");
        printf("----+-----+---+-----+-------\n");
        while((n = fscanf(fp, "%2s,%d,%d,%f,%f\n",
                Hour, &Count, &APM, &AMBPM, &MBytes)) != EOF) {
                output(0, "%4s", Hour);
                output(3, " %5d", Count);
                output(1, " %3d", APM);
                output(2, " %5.2f", AMBPM);
                output(3, " %7.2f", MBytes);
                printf("\n");
        }
        exit(0);
}

00,485,8,0.64,38.45
01,511,9,0.06,3.51
02,517,9,0.07,4.43

Hour Count APM AMBPM  MBytes
----+-----+---+-----+-------
  00   485   8  0.64   38.45
  01   511   9  0.06    3.51
  02   517   9  0.07    4.43