Answer Posted / abhishek bhardwaj

If one wants to add content of file1 on top of file2 then

cat file2 >> file1

How do I delete files from command prompt?

1236

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What is grep command in unix with examples?

1234

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Why is grep called grep?

1312

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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.

1259

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What does find command return in unix?

1166

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Write a command to kill the last background job?

1111

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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:

2278

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Write a command that will display files in the current directory, in a colored, long format.

1236

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What is updatedb?

1060

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How to find $ai_serual resolved path by using unix

1767

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Why is awk called awk?

1094

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What is the size of time_t?

1226

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What is $0 bash?

1214

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Write a command to display a file’s contents in various formats?

1220

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How do I search for a file in unix command?

1028

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