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"-n" loops around ; "-e" executes the given quoted string ; "$_" is the current line ; "split" creates an array on white space; each item of the array is "collected" to be then "capitalized" ; the array is "joined" back into a string.
There is 1 alternative - vote for the best!
Don't do this:
echo word | command
Using a bash "here strings" and "here documents" look leeter than piping echo into the command. Also prevents subshell execution. Word is also expanded as usual.
I find it useless but definitely simpler than #9230
Capitalize first letter of each word in a string.
If you can do better, submit your command here.
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