Shell Programming and Scripting

Try this in that case... I mean server name issue...

Code:

sed 's/_\([[:alpha:]]*[0-9][0-9]*\)/ \1/' input_file

--ahamed

Hey All,

Thanks for the assist - this is works a treat.

However just so I understand can you give me a brief explaination of some of the switch options you used:

sed 's/_\
what does the _\ do?

([[:alpha:]]*[0-9][0-9]*
I assume this means any alpha character followed by a number between 0-9 and and another number 0-9 and * means anything?

as per my understanding if you are looking for multiple replacement and change in a single command this shall work
sed -e "s/cat/lion/g" -e "s/yes/no/g' -e 's/true/false/g' -e ....... -i.backup actual_file

will do all the replacement and keep a backup of your file, named actual_file.backup

offcourse its up to you, how good you are able to write the regular expression, more accurate less errors and surprises, but it will be fun, welcome to sed
its tricky first time, try to keep a backup manually :-)

_ is just an underscore.

\( ... \) marks a sub-pattern, and stores the matched text for later use (\1 in the replacement text).

* is 0 or more occurrances of the previous regular expression.

[[:alpha:]]*[0-9][0-9]* - 0 or more alphabetic characters followed by 1 or more digits.