!cmd is used for – McqOptions

MCQOPTIONS

An error occurred while fetching the topics. Please try again later.

1.	!cmd is used for
A.	saving and editing
B.	editing and aborting
C.	to runs cmd and return to command prompt
D.	saving
Answer» D. saving

Discussion

No Comment Found

Related MCQs

The shell acts as an interface between the ..
A file x is created with the following contentsecho today is: dateIf you type x.then
Consider the program main ( ){printf("He arose a victor from n"); system ("date") ;printf("the dark domain");}If a.out is the executable code corresponding to the above source code, then the command a.out > out f
The following commands gives the output like this #cat file1 file2#cat: file1: No such file or directory helloIf we execute the command cat file1 file2 1>2 2>&1 the output would be
Non leaf node of the file system structure is ..
Given a code snippet below? #define PERMS (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)int main() { int fd1, fd2; umask(0);fd1 = open( file1 , O_CREAT | O_RDWR, PERMS)umask(S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);fd2 = open( file2 , O_CREAT | O_RDWR, PERMS)return 0;}The newly created files file1 and file2 will have the permissions respectively
For the below mentioned codeint main() { int fd;fd = open( logfile , O_CREAT|O_RDWR, 0600);lseek(fd, 5, SEEK_CUR);write(fd, Hello , 5);return 0;},
What is stored in logfile as per below mentioned code if we execute ./a.out > logfile?nt main() {int fd; close(1);fd = open( logfile ,O_RDWR, 0744); write(fd, Hello , 5); printf( World n );return 0;}
Code snippet (file1 size is 2024)f1 = fopen (file1, RDWR, RWX)lseek(f1,1024,SEEK_SET) write(f1,buf,10)What is offset now.
The statement z = expr 5 / 2 would store which of the following values in z?