Answer Posted / shilpi gupta

cat file1 file2 >>file3|mv file3 file2

What are the dos commands?

665

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Using unix command how to display no of records in oracle?

620

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what is the advaantage of each user having its own copy of the shell?

2047

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How do I clear my terminal history?

592

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Which command is used to copy files?

570

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What are the general commands in using unix os for a beginner?

585

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What is command statement?

555

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What does find command return in unix?

608

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What command is used to check the current users?

602

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Why is awk called awk?

583

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When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

1773

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What is the command to find hidden files in the current directory?

599

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What is grep command in unix with examples?

616

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What will the following command do?

627

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What is the difference between awk and grep?

567

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