Answer Posted / jay

crontab -r

What is grep short for?

1101

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What command will change your prompt to myprompt?

1386

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Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

1450

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How do I clear my terminal history?

1230

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

1317

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What does this command do,"$more readme.txt“?

1208

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What is the unix command to confirm a remote host is alive or not?

1280

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What is the use of the command 'ls -x chapter[1-5]' ?

1269

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Who invented grep?

1211

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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:

2318

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What do chown command do?

1257

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Can you explain a little bit about command substitution?

1164

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What are file commands?

1288

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Describe the usage and functionality of the command rm –r * in unix?

2184

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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?

1285

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