Answer Posted / hr@tgksolutions.com

Unix is a multiuser, multitasking operating system designed for flexibility and adaptability. Unlike other operating systems like Windows, Unix is known for its stability, security, and support for networking. Unix systems use a hierarchical file system, support multiple users, and offer robust shell scripting capabilities. Unix also serves as the foundation for many other operating systems, such as Linux and macOS.

What is grep r?

1049

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What is grep and how do you use it?

1066

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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?

1348

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

1118

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

1245

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How do I run a bash script?

1128

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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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Explain ‘library functions’ with respect to unix commands?

1128

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How do I open a port?

1046

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

1166

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

1122

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Are you in or at the office?

1084

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What does pipe () return?

1035

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What does the metacharacter mean?

1097

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Who invented grep?

1121

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