Answer Posted / sangeetha

We can start a new process from an existing process by
calling the function system("new process &"). The & sign
indicates the new process will run in background. Then
after this we can use the "ps" command to get the PID of
the new process.

Write a command that will find all text files in a directory such that it does not contain the word "amazing" in any form (that is, it must include the words amazing, amazing, or amazing)?

954

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How do I open a port?

589

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Which command will print your home directory on screen?

542

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Which command is used to restrict incoming messages?

592

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Why is grep called grep?

777

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What is unix command line?

606

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What is a bash command?

624

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How to use grep command to list find the records of a file containing 10 different strings?

643

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Name the various commands that are used for the user information in unix.

539

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What does the command '$ls | wc –l > file1' do?

678

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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:

1758

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What do chgrp command do?

590

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Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?

589

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Which command is used to copy files?

556

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What are the unix commands?

557

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