Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!emory!hubcap!ncrcae!ricks
From: ricks@ncrcae.Columbia.NCR.COM (Rick Silverstein)
Newsgroups: comp.unix.questions
Subject: Re: Convert 'a' to 'A' in a Shell-Script
Message-ID: <7019@ncrcae.Columbia.NCR.COM>
Date: 30 Jan 91 20:31:26 GMT
References: <888@kivax.UUCP>
Reply-To: ricks@ncrcae.Columbia.NCR.COM (Rick Silverstein)
Organization: NCR Corp., Engineering & Manufacturing - Columbia, SC
Lines: 12

In article <888@kivax.UUCP> koe@kivax.UUCP (Diana Koehler) writes:
>
>
>How can I convert "lowercase" characters in "uppercase" characters
>in a Shell-Script.
>f.e. convert all 'a' to 'A' ?
>(awk, sed ??)
>

/usr/bin/tr works well for me.  Use the syntax:  tr "[a-z]" "[A-Z]"
This reads from stdin and writes to stdout, mapping a to A, b to B, ...
and z to Z so 'echo hello | tr "[a-z]" "[A-Z]"' outputs HELLO.