Using Grep

datebook file hyperlink : https://github.com/osantana19/Practice-Files/blob/master/datebook

Use the file provided called datebook and test your knowledge of the linux grep command by reviewing the commands below:

1.Print all lines containing the string San .

grep 'San' datebook or you can use cat datebook | grep ‘San’ //grep looks for words in quotes

2.Print all lines where the person's first name starts with J .

grep ^J datebook //The '^' means look at the start

3.Print all lines ending in 700 .

grep -E ‘700\b’ datebook // The \b looks for the end of the line

4.Print all lines that don't contain 834 .

grep -w “834” datebook

5.Print all lines where birthdays are in December .

grep “12/[0-9]/[0-9]\{2\}” datebook

6.Print all lines where the phone number is in the 408 area code.

grep “408-[0-9]\{3\}-[0-9]\{4\}” datebook

7.Print all lines containing an uppercase letter, followed by four lowercase letters , a comma, a space, and one uppercase letter.

grep “[A-Z][a-z][a-z][a-z][a-z][‘,’][‘ ‘][A-Z]” datebook

8.Print lines where the last name begins with K or k .

grep -E “[a-z][‘ ‘][K k]” datebook

9.Print lines preceded by a line number where the salary is a six-figure number.

grep “:[0-9]\{6\}” datebook

10.Print lines containing Lincoln or lincoln (remember that grep is insensitive to case).

grep -e “Lincoln” -e “lincoln” datebook

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