Q641
Open questionWhich of these is the correct method for appending "foo" in /tmp/bar file?
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Computer Science · all questionsLinux
Linux
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Q642
Open questionWhich one of the following is not true?
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Q643
Open questionLibsysfs is a
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Q644
Open questionWhat is /bin/sh ?
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Q645
Open questionWhat is the output of this program?
#include<stdio.h>
#include<fcntl.h>
#include<errno.h>
#include<sys/stat.h>
#include<sys/mman.h>
int main()
{
int s_id;
s_id = shm_open("shared_mem",O_CREAT|O_RDWR,0666);
if(s_id != EACCES)
perror("Permission granted\n");
return 0;
}Select an option to see the answer and solution.
Q646
Open questionA server which is handling one client at a time is called as
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Q647
Open questionWhich of the following represents an absolute path?
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Q648
Open questionThis program will print the
#include<stdio.h>
#include<unistd.h>
int main()
{
long int value;
value = sysconf(_SC_OPEN_MAX);
printf("%ld\n",value);
return 0;
}Select an option to see the answer and solution.
Q649
Open questionSingle user mode shell runs as
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Q650
Open questionWrite the command to display the current date in the form dd/mm/yyyy.
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Q651
Open questionThe object file contains the
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Q652
Open questionInside GDB, a program may stop because of
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Q653
Open questionThe lines in our code that begin with the "#" character are
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Q654
Open questionWhich command is used to debug a shell script program
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Q655
Open questionWhat is the output of this program?
#!/bin/bash
function hello_function1 {
echo "This is first function"
}
hello_function2() {
echo "This is second function"
}
hello_function1
hello_function2
exit 0Select an option to see the answer and solution.
Q656
Open questionEffective user id can be set using following permission
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Q657
Open questionCreate a new file "new.txt" that is a concatenation of "file1.txt" and "file2.txt"
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Q658
Open questionThe hard limit of the file descriptors that can be opened by this process will become
#include<stdio.h>
#include<sys/time.h>
#include<sys/resource.h>
int main()
{
struct rlimit limit;
limit.rlim_cur = 10;
limit.rlim_max = 20;
if(setrlimit(RLIMIT_NOFILE,&limit) != 0)
perror("setrlimit");
if(getrlimit(RLIMIT_NOFILE,&limit) != 0)
perror("getrlimit");
printf("%lu\n",limit.rlim_cur);
printf("%lu\n",limit.rlim_max);
return 0;
}Select an option to see the answer and solution.
Q659
Open questionThe archive(ar) utility in linux can
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Q660
Open questionThe gcc option -Wunused warns when a . . . . . . . . variable is unused aside from its declaration.
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