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How to output only captured groups with sed?
...specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
include one or more d...
What's the difference between lists and tuples?
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edited May 14 '18 at 7:50
trdngy
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answered Mar 9 '09 at 16:02
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Best way to make Django's login_required the default
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edited Jul 27 '13 at 18:10
answered Jan 29 '10 at 18:33
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What is the bit size of long on 64-bit Windows?
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How to read/write from/to file using Go?
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answered Mar 16 '12 at 15:17
MostafaMostafa
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How to change background color in the Notepad++ text editor?
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answered Jun 10 '14 at 17:23
triforceofcouragetriforceofcourage
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SQL update fields of one table from fields of another one
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Can I delete a git commit but keep the changes?
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1749
It's as simple as this:
git reset HEAD^
Note: some shells treat ^ as a special character (...
How to save a list as numpy array in python?
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edited Sep 4 at 7:27
yatu
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answered May...