C Programming - Command Line Arguments

11. 

What will be the output of the program in Turbo C?

#include<stdio.h>

int main(int argc, char *argv, char *env[])
{
    int i;
    for(i=1; i<argc; i++)
        printf("%s\n", env[i]);
    return 0;
}

A. List of all environment variables
B. List of all command-line arguments
C. count of command-line arguments
D. Error: cannot have more than two arguments in main()

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

12. 

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample Jan Feb Mar

/* sample.c */
#include<stdio.h>
#include<dos.h>

int main(int arc, char *arv[])
{
    int i;
    for(i=1; i<_argc; i++)
        printf("%s ", _argv[i]);
    return 0;
}

A. No output
B. sample Jan Feb Mar
C. Jan Feb Mar
D. Error

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

13. 

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample monday tuesday wednesday thursday

/* sample.c */
#include<stdio.h>

int main(int argc, char *argv[])
{
    while(--argc>0)
        printf("%s", *++argv);
    return 0;
}

A. sample monday tuesday wednesday thursday
B. monday tuesday wednesday thursday
C. monday tuesday thursday
D. tuesday

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

14. 

If the following program (myproc.c) is present in the directory "C:\TC" then what will be output of the program if run it from DOS shell?

/* myproc.c */
#include<stdio.h>

int main(int argc, char *argv[])
{
    printf("%s", argv[0]);
    return 0;
}

A. SAMPLE.C
B. C:\TC\MYPROC.EXE
C. C:\TC
D. Error

Answer: Option B

Explanation:

In order to execute it from DOS shell, we have to run the created EXE file by entering the exe file name as C:\TC>myproc <enter>.

15. 

What will be the output of the program (myprog.c) given below if it is executed from the command line?
cmd> myprog one two three

/* myprog.c */
#include<stdio.h>

int main(int argc, char *argv[])
{
    int i;
    for(i=1; i<argc; i++)
        printf("%c", argv[i][0]);
    return 0;
}

A. oot
B. ott
C. nwh
D. eoe

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.