SCO 3.2v5.05Eb: ? on trimming strings


 
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# 1  
Old 04-18-2002
Data SCO 3.2v5.05Eb: ? on trimming strings

Greetings.
If I have a file with the following format:

joe__________blow
1313 mockingbird pl.
Los Angeles________, CA. 90210


bill__________clinton
1234 doghouse
New York__________, NY. 12345


(note: I underlined what are spaces in the list due to the fact the billboard spaces them to 1 space)

How would I go about trimming the spaces between the words
down to 1 space?

I thought about sed, but the field delimiter is not fixed (a last name could have multiple parts for instances, and the space between first/last city/state is not a tab).

I am essentially looking for an ltrim/rtrim command for shell.

Thanks in advance.
gee-dub
# 2  
Old 04-18-2002
Try this:
Code:
echo "This is    a   weird            line,   yo" | sed 's/   */ /g'

In the sed statement, it's :
slash,space,space,space,star,slash,space,slash
(as if that makes more sense Smilie

It didn't seem to like "sed 's/ +/ /g'"
(space,space,plus)...
Anyone know why?
# 3  
Old 04-18-2002
Bug

that worked great. thanks alot 'livin free'.
gee-dub
# 4  
Old 04-18-2002
Quote:
Originally posted by LivinFree

It didn't seem to like "sed 's/ +/ /g'"
(space,space,plus)...
Anyone know why?
There are two kinds of regular expressions: basic regular expressions, and extended regular expressions. sed only uses basic regular expressions. The + sign is a feature of extended regular expressions.
# 5  
Old 04-19-2002
Ahh, I see now.
Thank you for the reply!
 
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