This comes up pretty infrequently, but I think it’s worth knowing. I specifically had a situation where I was greping hostnames out of a file. Personally, I like hostnames to appear in all uppercase, but this file was full of hostnames in all lowercase. You can solve the problem with tr.
$ echo slap was here | tr '[a-z]' '[A-Z]'
SLAP WAS HEREThat’s nifty.
Administrative Note: The DOS prompt traceroute image used in this post is courtesy Carl Silver.
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Which O/S does this work for? It was published in 2007, but doesn’t work on Windows XP. Even changing TR to TraceRT doesn’t translate. Do you have a TR executable?
Sorry Jim, this particular tip is a UNIX (and UNIX-like) thing. You might try the Cygwin environment for Windows XP to get the same effect.