Answer Posted / div

When the test in included in double quotes ("") it is
called as weak quotes. If the text is a variable the $text
within the quotes will give the resolved value.

In case if single quotes ('') i.e. Strong quotes, the text
is printed as it is even if it is states as $text.

What is grep command in unix with examples?

1223

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What command is used to check the current users?

1135

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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.

1251

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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:

2272

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Which command is used to find whether the system is 32 bit or 64 bit?

1153

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How do I run a bash script?

1187

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What does grep v grep do?

1079

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Who command in unix operating system?

1140

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

1232

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Which command is used to create a directory?

1170

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How do you grep a case insensitive?

1052

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Why is awk called awk?

1080

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What will the following command do?

1121

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

1280

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What is the use of sed command in unix?

1214

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