Answer Posted / samrat biswal

Test is a condition evaluation command.The test command
evaluates the expression if the value is True,returns a
zero exit status; otherwise,a nonzero exit status is
returned.test also returns a nonzero exit status if there
are no arguments.

Who invented grep?

1209

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What does 'mkdir' command do in UNIX?

1367

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What is the pipe command?

1241

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What is sed awk grep?

1183

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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:

2316

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1154

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1161

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What will the following command do?

1172

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1288

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1218

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Explain command to view process running?

1178

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What is the command to find maximum memory taking process on the server?

1262

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1151

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What is the use of the tee command?

1151

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What does sed command do in unix?

1245

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