Answer Posted / dhirendra rai

The term "Shell programming" is not true. "Shell scripting"
is the term which is a collection of command to do a
specific task. The "shell" act as a "Interpreter". When we
execute a shell script, a temporary shell is created and the
interpreter interprete and execute one line at a time. if
any error in the line then it exit from that line. No next
line will be read.

Getting error and jump to next line is happen in case of
"Compiler".

What are file commands?

1228

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how to sort the content of the file based on numeric values

1777

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What does sed command do in unix?

1197

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What is the general format of unix command syntax?

1925

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Describe the zip/unzip command using gzip.

1155

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Is command prompt unix?

1146

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What is the command to compare two files in unix?

1117

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Is ‘du’ a command? If so, what is its use?

1145

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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:

2265

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How do you grep recursively?

1105

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What is unix command?

1253

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Write a command that will find all text files in a directory such that it does not contain the word "amazing" in any form (that is, it must include the words amazing, amazing, or amazing)?

1565

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Why is it called a shebang?

1179

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Differentiate cmp command from diff command.

1166

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

1160

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