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Using sed to delete everything after "space"

grep, sed, solved, space

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# 1  
Old 01-12-2018
Using sed to delete everything after "space"


I have a lot of string texts which normally should only contain a single float so that I can put this float into a variable.
This stings are generated by a grep command out of a large html file.
sometimes a value that I want to grep is found more than once, so that the resulting sting contains the value more than once, too.
"14.5 14.5"
So my idea was to use the sed command to delete everything after the first found " ". But I am not able to set the parameters for that sed command right.
I hope someone can help me with that...


---------- Post updated at 01:14 PM ---------- Previous update was at 01:03 PM ----------

never mind. The Secound after I wrote my question I found the Answer myself:
sed 's/\s.$//'

Last edited by rbatte1; 01-12-2018 at 08:49 AM.. Reason: Added CODE tags
# 2  
Old 01-12-2018
You certainly meant .* not .$ ?
Further, \s is standard in perl (PCRE). And came into the GNU RE but is not a standard in an RE (not portable to a non-GNU sed).
The standard wants a character class
sed 's/[[:blank:]].*//'

Last but not least you ask to delete everything *after* a space, that would be
sed 's/\([[:blank:]]\).*/\1/'

The matching blank is marked in a \( \) group, and the \1 restores it.
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