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How to run a command before a Bash script exits?
... edited Aug 14 '19 at 19:50
030
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answered Jan 25 '10 at 5:12
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sed error: “invalid reference \1 on `s' command's RHS”
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edited May 2 '18 at 18:30
user3745840
1333 bronze badges
answered May 19 '13 at 18:10
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How to trim whitespace from a Bash variable?
... community wiki
10 revs, 9 users 38%MattyV
63
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Why doesn't Java allow generic subclasses of Throwable?
According to the Java Language Sepecification , 3rd edition:
5 Answers
5
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Proper use of errors
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edited Apr 21 '17 at 16:34
Mark Amery
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an...
Return two and more values from a method
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def sumdiff(x, y)
return x+y, x-y
end
#=> nil
sumdiff(3, 4)
#=> [7, -1]
a = sumdiff(3,4)
#=> [7, -1]
a
#=> [7, -1]
a,b=sumdiff(3,4)
#=> [7, -1]
a
#=> 7
b
#=> -1
a,b,c=sumdiff(3,4)
#=> [7, -1]
a
#=> 7
b
#=> -1
c
#=> nil
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How do you run a single query through mysql from the command line?
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3
C:\Program Files (x86)\MySQL\MySQL Server 5.7\bin>mysql.exe -u root -p -e "my query"---->ERROR 1045 (28000): Access denied for user 'r...
Remove the first character of a string
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317
python 2.x
s = ":dfa:sif:e"
print s[1:]
python 3.x
s = ":dfa:sif:e"
print(s[1:])
both pr...
Javascript trick for 'paste as plain text` in execCommand
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edited Oct 30 '18 at 21:56
Quinn Keaveney
6321010 silver badges2929 bronze badges
answere...