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using tr

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# 1  
Old 08-12-2008
using tr
Need to replace the first character in a string with the upper case equivalent. Not sure how to use "tr" in this case - all my attempts resulted in the whole word being converted to upper case. The first character is not fixed (will vary periodically).

Any suggestion?

Thanks
# 2  
Old 08-12-2008
Here are some examples, but does not include tr but might be helpful.

https://www.unix.com/shell-programmin...character.html
# 3  
Old 08-12-2008
Code:
# echo hello | nawk '{sub(".",toupper(substr($0,1,1)),$0)}{print}'
Hello

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