Answer Posted / durgesh srivastava

!wq or we use shift+ZZ

What does touch command do in unix?

1336

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What does the “echo” command do?

1091

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What does the md command do?

1068

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How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?

1243

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What is the significance of the 'tee' command?

1131

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Which command is used to kill the last background job?

1289

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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:

2198

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What does grep v grep do?

1015

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What is the command to find maximum memory taking process on the server?

1144

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how to sort the content of the file based on numeric values

1727

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Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

1152

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What is the difference between awk and grep?

1143

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What is the pipe command?

1122

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Which unix command lists files/folders in alphabetical order?

1649

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What is the use of tee command?

1067

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