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Answer Posted / kaustubh
grep command is a utility which helps in searching pattern
from the given file.
example
grep "pattern" /home/username/somefile.txt
it ll search all lines in the file somefile.txt and will
print the line which contains pattern.
there are many options as
-v = invert
-i = ignorecase
-c = count
-l = filename
-r = recursive
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