grep examples

gistfile1.sh

grep '[A–Z]' #lines with an uppercase char
grep 'ˆ[A–Z]' #lines starting with an uppercase char
grep '[A–Z]$' #lines ending with an uppercase char
grep 'ˆ[A–Z]*$' #lines with all uppercase chars
grep '[aeiouAEIOU]' #lines with a vowel
grep 'ˆ[aeiouAEIOU]' #lines starting with a vowel
grep '[aeiouAEIOU]$' #lines ending with a vowel
grep –i '[aeiou]' #ditto
grep –i 'ˆ[aeiou]'
grep –i '[aeiou]$'
grep –i 'ˆ[ˆaeiou]' #lines starting with a non-vowel
grep –i '[ˆaeiou]$' #lines ending with a non-vowel
grep –i '[aeiou].*[aeiou]' #lines with two or more vowels
grep –i 'ˆ[ˆaeiou]*[aeiou][ˆaeiou]*$' #lines with exactly one vowel