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Using sed, how do you print the first 'N' characters of a line?
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211
Don't use sed, use cut:
grep .... | cut -c 1-N
If you MUST use sed:
grep ... | sed -e 's/^...
Timer & TimerTask versus Thread + sleep in Java
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answered Sep 21 '09 at 7:55
ZedZed
51.7k77 gold badges7070 silver badges9898 bronze badges
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Return first match of Ruby regex
...w about this shortcut.
– Pierre
Nov 21 '12 at 16:53
Is there some documentation on this shortcut? I searched high and...
Does a C# app track how long its been running?
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Nikhil AgrawalNikhil Agrawal
40.6k2121 gold badges103103 silver badges181181 bronze badges
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How can I delete one element from an array by value
...oved.
– Joshua Pinter
Sep 27 '13 at 21:36
23
The other consequence to consider is that delete mut...
View a file in a different Git branch without changing branches
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answered Oct 21 '11 at 23:47
ScolytusScolytus
13.2k66 gold badges3737 silver badges6363 bronze badges
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How to return an empty ActiveRecord relation?
...s 3.
– Tim Diggins
Sep 30 '14 at 11:21
9
As of Rails 4.0.5, Model.none doesn't work. You need t...
How do you sort a list in Jinja2?
...e option reverse=True.
– Romain
Oct 21 '18 at 19:20
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Rounding BigDecimal to *always* have two decimal places
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Louis WassermanLouis Wasserman
164k2121 gold badges300300 silver badges361361 bronze badges
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RegEx - Match Numbers of Variable Length
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Ryan YRyan Y
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