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What are the differences among grep, awk & sed? [duplicate]
...te sum/average/max/min/etc. what ever you may need.
$ cat file.txt
A 10
B 20
C 60
$ awk 'BEGIN {sum=0; count=0; OFS="\t"} {sum+=$2; count++} END {print "Average:", sum/count}' file.txt
Average: 30
I recommend that you read this book: Sed & Awk: 2nd Ed.
It will help you become a proficient...
IllegalArgumentException or NullPointerException for a null parameter? [closed]
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420
You should be using IllegalArgumentException (IAE), not NullPointerException (NPE) for the foll...
Express-js wildcard routing to cover everything under and including a path
... characters.
– Johann
Aug 23 '15 at 20:10
add a comment
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Elevating process privilege programmatically?
... LukePuplett =)
– Jet
Mar 27 '13 at 20:14
25
Looks like you have to set startInfo.ShellExecute=tr...
Lodash - difference between .extend() / .assign() and .merge()
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answered Oct 20 '15 at 22:02
NateNate
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Is there a C++ decompiler? [closed]
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edited Oct 15 '08 at 15:20
answered Oct 15 '08 at 15:15
D...
In MySQL what does “Overhead” mean, what is bad about it, and how to fix it?
...n Google.
– Ian Hunter
Sep 4 '12 at 20:38
how do we know which causes the overhead again and again ?
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How to insert an item at the beginning of an array in PHP?
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answered Nov 16 '09 at 2:20
DarthVaderDarthVader
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API pagination best practices
...rementing number and does not preserve a date or a time. ... In SQL server 2008 and later, the timestamp type has been renamed to rowversion, presumably to better reflect its purpose and value." So there's no evidence here that timestamps (those that actually contain a time value) are unique.
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Removing multiple classes (jQuery)
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20
jQuery .removeClass() documentation.
One or more CSS classes to remove from the elements, thes...