convert last character of a string to upper case

Question

How can I convert last character of the string to upper case ?

ex:

foo=test echo ${foo^}

this works for first character

Test

I want the output to be

TesT

How does this work?

There is a very similar question here but couldn't find a dupe on SO. — oguz ismail
– oguz ismail, Commented May 7, 2019 at 15:39

oguz ismail · Accepted Answer · 2019-05-07 15:39:17Z

3

Using GNU sed:

foo=test sed 's/.$/\U&/' <<< "$foo"

Using an extra variable:

foo=test tmp="${foo: -1}" echo "${foo:: -1}${tmp^}"

answered May 7, 2019 at 15:15

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