Question

Task 2: Writing some regex patterns 1. Create script named "regexes.sh" and write grep -r statements to search your work for the following patterns: • All sed statements • All lines that starts with the letter m All lines that contain three digit numbers • All lines that start with a vowel • All lines that contain loops All echo statements with at least three words Hint: You can use grep with -e to use the ERE regex features

Answer 1

Script File

filename: regexes.sh

#!/bin/bash

cd ..

grep -r sed
echo "Sed statements"

grep -r "^m"
echo "Lines that start with letter m"

grep -r -E '\<[0-9]{3}\>'
echo "Lines that contain three digit numbers"

grep -r -i '^[aeiou]'
echo "Lines that start with a Vowel"

grep -r -i -w '\<for>\'
echo "Lines that contains the for loops"

grep -r |echo | grep '*[[:blank]]*[[:blank]]*'
echo "echo statements with at least three words"

1 #!/bin/bash 2 3 cd .. 4 5 grep -r sed echo "sed statements" 6 7 8 grep -r "^m" echo "Lines that start with letter m" 9 10 11 grep -r -E '\<[0-9]{3}\>' echo "Lines that contain three digit numbers" 12 13 14 grep -r -i '^[aeiou]' echo "lines that start with a vowel" 15 16 17 grep -r -i -w '\<for>\'. echo "Lines that contains the for loops" 18 19 20 grep -r echo | grep '*[[:blank]]*[[:blank]]*' echo "echo statements with at least three words" 21

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Hope this helps!

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Thank you!

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