Answer Posted / kiruthiga.s

/etc/services will have all the port details or netstat |
grep nonlisten

What is s and g in sed command?

1120

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

1267

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Which command is used to find whether the system is 32 bit or 64 bit?

1153

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Why is grep called grep?

1307

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hw will u use awk in replacing cahrs and files

3250

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What do know about tee command?

1170

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What are the general commands in using unix os for a beginner?

1175

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What does the “echo” command do?

1161

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How do I use grep to search for a file?

1065

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Which command is used to restrict incoming messages?

1113

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How do I search a whole word in vim?

1185

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What happens when we execute a unix command?

1149

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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:

2273

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What is command substitution?

1384

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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?

1234

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