Answer Posted / khaja.shaik

To create files in unix there are two processes are there.
They are..
1)cat command
which creates a new file. If the file is already exists
it overrides the contents. It occupies memory.
2)touch command
Which creates a new empty file for later use.

What are some command words?

1095

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Who command in unix operating system?

1095

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How do you repeat a command in terminal?

1161

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What is the nmap command?

1134

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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:

2214

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What is used to type command?

1015

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Can you enlist some commonly used network commands?

1059

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Is ‘du’ a command? If so, what is its use?

1099

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What do chown command do?

1124

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How do I use nslookup?

1053

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What does 'mkdir' command do in UNIX?

1258

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what is the advaantage of each user having its own copy of the shell?

2513

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How can you see the command line history?

1087

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What does the metacharacter mean?

1097

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How does the system know where one command ends and another begins?

2182

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