Fixing the case problems in a file with a tr command...

romeo0307 · 05-07-2012, 08:21 PM

My last question today. I swear I won't bother you for a while again

I have 2 files:

File1 and File2

File1 has the following sentence:

Trust but Verify

File2 has the following sentence:

ronald REAGAN

I need to fix the case problems using the tr command and possibly other commands and take the output and put it into 2 new files: File3 and File4.

Can you guys help please?

towheedm · 05-07-2012, 10:37 PM

Without doing your homework for you, here are a few pointers. First, 'tr' translates between one character set and another (it also deletes and squeezes char sets), it cannot be used to correct words with wrong cases. For example:

Code:

echo "ronald REAGAN | tr [a-z] [A-Z]
RONALD REAGAN

What exactly should the correct case for 'Trust and Verify' be?

I would probably use sed, but there may be other utils.

grail · 05-08-2012, 02:36 AM

Just a slight edit on the above information:

1. Second double quote missing

2. As there are no square brackets in the input then they are not required:

Code:

echo "ronald REAGAN" | tr a-z A-Z