Answer Posted / narendrasairam

cat - command is used to display the content of a file
touch - command is used to change the time stamp of a file

Why is grep called grep?

1298

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

1313

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How can we use grep command in unix?

1210

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What does the command ' $who | sort –logfile > newfile' do?

1279

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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.

1243

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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:

2265

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

1214

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Is grep faster than awk?

1042

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What is the pipe command?

1190

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Can you enlist some commonly used network commands?

1113

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What is the comma to show the space allocation of files?

1089

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What are the unix commands?

1097

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What is awk good for?

1136

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What is unix command?

1263

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

1178

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