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Computer Science Engineering Unix Difficulty: Medium

Which of the following system calls performs the action of cd command?

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How can you search for blank line in a file? In a computer with an eide adapter, where should you connect an ATA CD-ROM drive? In a ConstraintLayout, which of the following choices describes the constraints needed to keep a view in place during runtime? What is the output of this program? #include<stdio.h> #include<stdlib.h> #include<string.h> #include<sys/types.h> #include<sys/ipc.h> #include<sys/msg.h> struct data_st{ long int id; char buff[11]; }; int main() { int m_id; struct data_st data1, data2; m_id = msgget((key_t)181,0666|IPC_CREAT); if(m_id == -1) perror("msgget"); data1.id = 1; strcpy(data1.buff,"example"); if(msgsnd(m_id,&data1,11,0) == -1) perror("msgsnd"); if(msgrcv(m_id,&data2,11,0) == -1) perror("msgrcv"); printf("%s\n",data2.buff); if(msgctl(m_id,IPC_RMID,0) != 0) perror("msgctl"); return 0; } At room temperature an intrinsic silicon crystal acts approximately like