Answer Posted / bhara singht

ls command is used to show the list of all files

What is time_t?

1053

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What is in grep command?

1115

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Is command prompt unix?

1092

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What is the difference between awk and grep?

1144

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Does cp command overwrite files?

1130

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Describe the usage and functionality of the command rm –r * in unix?

1960

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What is command substitution?

1260

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What is a bash command?

1108

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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:

2200

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What is the use of egrep command in unix?

1122

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What does pipe () return?

1018

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Differentiate cat command from more command.

1078

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What are grep patterns?

1011

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Explain command to display different lines that are found when compare two files?

1103

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What do chown command do?

1113

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