Answer Posted / anshul basra

$ head -99 <filename> will show first 99lines of that file.

What is time_t?

1108

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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.

1231

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Which command is used to copy files?

1170

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How does shebang work?

1063

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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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Who command in unix operating system?

1130

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What is the difference between cat command and more command?

1202

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How do I use grep to find a file?

1110

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How do I find previous commands in unix?

1183

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What are file commands?

1228

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Describe the zip/unzip command using gzip.

1155

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What is the command to find hidden files in the current directory?

1192

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What is a bash command?

1173

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Explain mount and unmount command.

1210

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What is awk good for?

1134

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