replacing a range of characters in Unix

[RJSHA1]

Hi there,
I have a to write a script where if data in a file is not one of the following types of data e.g. 0-9 or A..Z or a..z or $,^& then I replace it with spaces. I know that SED is probably the best way to do it, but I'm struggling wit the syntax can any one help please

Ta
Bob...

 

[PHV]

man tr

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ222-2244

 

[RJSHA1]

Sorry PHV
Can I do someting like this
tr -d ![A..Z] [a..z] [0..9] [%^] filename > filename2

I want all the characters that are not in the ranges above to be replaced eith spaces

 

[RJSHA1]

Sorry PHV
Can I do someting like this
tr -d ![A..Z] [a..z] [0..9] [%^] filename > filename2

I want all the characters that are not in the ranges above to be replaced with spaces

 

[PHV]

Try something like this:
tr -cs '\n0-9_$%^A-Za-z' "[ *]" <filename >filename2

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ222-2244