Answer Posted / rajhshekhar aletty

using hard link, we can't create links for directories. the
link can be created within the same File System, the link
can't span into an other File System.

using soft (symbol) link, we can create links for
directories moreover that link can span into an other File
System.

Enumerate some of the most commonly used network commands in unix?

1175

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What does this command do? Cat food 1 > kitty

1591

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What is grep short for?

1051

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What are bash commands?

1170

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Who invented grep?

1165

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Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

1223

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How to display no of records in oracle using unix command?

1176

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What are the differences among a system call, a library function, and a unix command?

1233

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What are filter commands in unix?

1204

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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 the significance of the 'tee' command?

1202

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What is the first character of the output in ls l command?

1216

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What is s and g in sed command?

1120

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What is rmdir command?

1115

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What difference between cmp and diff commands?

1312

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