Answer Posted / varakumar

The sed utility is a stream editor that reads one or more
text files, makes editing changes according to a
script of
editing commands, and writes the results to standard
output.
The script is obtained from either the script
operand
string, or a combination of the option-arguments from
the -e
script and -f script_file options.

The sed utility is a text editor. It cannot edit
binary
files or files containing ASCII NUL (\0) characters
or very
long lines.

What is the command to find hidden files in the current directory?

1192

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What is the use of the tee command?

1099

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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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Describe the zip/unzip command using gzip.

1156

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What is grep and how do you use it?

1112

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What is the command to view process running?

1108

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Which command is used to delete all files in the current directory and all its sub-directories?

1257

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What does #!/ Bin sh do?

1068

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Who wrote grep?

1066

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Why is it called grep?

1029

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What is a bash command?

1180

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What does the md command do?

1133

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What does touch command do in unix?

1424

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What are filter commands in unix?

1197

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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)?

1567

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