71. In this program the fifo "my_fifo"
#include<stdio.h>
int main()
{
if (mkfifo("my_fifo",0666) != 0)
perror("mkfifo");
return 0;
}
#include<stdio.h>
int main()
{
if (mkfifo("my_fifo",0666) != 0)
perror("mkfifo");
return 0;
}72. A user executes the following command successfully:
$ chmod +x file1.txt
Which of the following is true of the output of this command?
$ chmod +x file1.txt73. What command would send the output of cmd1 to the input of cmd2?
74. The command chmod 4777 a.out
75. Each driver in the device driver model is described by a . . . . . . . . object.
76. Which GDB command reloads the debugging information?
77. In linux, the static libraries are mostly installed in
78. pwd command displays
79. What is the output of the following code:
os=Unix
echo 1.$os 2."$os" 3.'$os' 4.$os
os=Unix
echo 1.$os 2."$os" 3.'$os' 4.$os80. Sysconf(_SC_PAGE_SIZE) returns?
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