Answer Posted / dibya lochan giri

in unix file permissions the second field denotes as group
[read(r),write(w),execute(x)] permissions.
read=4
wite=2
execute=1

Who command in unix operating system?

1084

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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:

2201

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What does the md command do?

1072

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What is the use of awk command in unix?

1067

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Differentiate cat command from more command.

1083

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How do I use grep to find a file?

1057

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

1156

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How do you grep a case insensitive?

998

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Which unix command to make a new directory?

1065

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Can you enlist some commonly used network commands?

1051

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How does shebang work?

1017

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How do I open a port?

1036

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Who invented grep?

1105

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What is the command to compare two files in unix?

1052

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What does the command '$ls | wc –l > file1' do?

1173

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