[SOLVED] tr command

tt1187 · 01-17-2014, 03:31 PM

Hello,

For learning purposes, I'm struggling to make some options of the tr command work. It's mainly the [:upper:] [:lower]. How would it work?

For example, this tr command works fine;

tr BCGJTOS bcgjtos < tr.txt - this just replaces letters in SET1 with SET2 in the tr.txt

But how would the [:upper:] syntax work?

Thanks

druuna · 01-17-2014, 03:34 PM

Try this:

Code:

 tr '[:lower:]' '[:upper:]' < tr.txt

tt1187 · 01-17-2014, 03:49 PM

Thanks, that worked/makes sense.

druuna · 01-17-2014, 03:58 PM

You're welcome.

BTW: Can you put up the [SOLVED] tag.
- above the first post -> Please Mark this thread as solved if you feel a solution has been provided.
- -or- -
- first post -> Thread Tools -> Mark this thread as solved