Multiple variables in sprintf

I need to do the following

sprintf (x, "pgrep -u %s | sed %i 'q;d', y,z);

but it doesn't seem to work. Is this possible with sprintf? If so it must be some other issue in my code.

You only have one " character, where is your format string supposed to end?

Code:

#include <stdio.h>
int main(void)
{
    char x[256];
    char y[] = "foo";
    int z = 3;
    sprintf (x, "pgrep -u %s | sed %i 'q;d'", y,z);
    puts(x);
}
/* my output:
pgrep -u foo | sed 3 'q;d'
*/

Your syntax is all screwed up there, I'm not even sure what you're trying to do. You realize you're never closing your double quotes?

Edit: cwr beat me, which is great cause I'm going to sleep anyway.

Originally Posted by cwr

You only have one " character, where is your format string supposed to end?

Code:

#include <stdio.h>
int main(void)
{
    char x[256];
    char y[] = "foo";
    int z = 3;
    sprintf (x, "pgrep -u %s | sed %i 'q;d'", y,z);
    puts(x);
}
/* my output:
pgrep -u foo | sed 3 'q;d'
*/

Yes that's precisely what I'm trying to do. Would this be better?
[code]
sprintf (x, "pgrep -u %s | sed %i \'q;d\'", y,z);
[code\]

You don't need to escape the ' characters. Does my example produce the result you desire?