bash capitalize vowels using tr
# capitalize a vowels in raw string 'hello'
echo abc | tr aeou AEOU
hEllO
# capitalize vowels in text from file 'hello_world.text'
tr aeou AEOU < hello_world.text
hEllO wOrld
bash capitalize vowels using tr
# capitalize a vowels in raw string 'hello'
echo abc | tr aeou AEOU
hEllO
# capitalize vowels in text from file 'hello_world.text'
tr aeou AEOU < hello_world.text
hEllO wOrld
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