Answer Posted / rahul

in unix echo is used to display the text

ex; echo "oracle"

result :oracle

How can you see the command line history?

584

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What are the unix commands?

558

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Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

622

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Why is grep called grep?

780

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What happens when we execute a unix command?

597

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What are reported commands?

566

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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:

1759

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What is nr in awk command?

602

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Which command is used to delete all files in the current directory and all its sub-directories?

663

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What does #!/ Bin sh do?

589

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What is the use of egrep command in unix?

624

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How do I search a whole word in vim?

693

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What does find command return in unix?

593

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

2034

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Which command will print your home directory on screen?

546

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