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How to modify a global variable within a function in bash?
...e number as the exit status:
mysecondfunc() {
echo "Hello"
return 4
}
var="$(mysecondfunc)"
num_var=$?
echo "$var - num is $num_var"
Gives:
Hello - num is 4
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Design for Facebook authentication in an iOS app that also accesses a secured web service
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4 Answers
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How to remove an element from an array in Swift
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314
The let keyword is for declaring constants that can't be changed. If you want to modify a variab...
How to express a NOT IN query with ActiveRecord/Rails?
...e this since it seems a lot of people come to this, if you are using Rails 4 look at the answers by Trung Lê` and VinniVidiVicci.
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How to open emacs inside bash
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edited Nov 21 '12 at 14:50
JMFR
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answered Jan 5 '12 at 16:44
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How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
...th the salt?
– MondayPaper
May 22 '14 at 20:02
6
bcrypt is a standard and always concatenates the...
Using Python String Formatting with Lists
...
114
print s % tuple(x)
instead of
print s % (x)
...
Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
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Naming returned columns in Pandas aggregate function? [duplicate]
...om.load_data('Loblolly')
print(data.head())
# height age Seed
# 1 4.51 3 301
# 15 10.89 5 301
# 29 28.72 10 301
# 43 41.74 15 301
# 57 52.70 20 301
df = data.groupby('Seed').agg(
{'age':['sum'],
'height':['mean', 'std']})
print(df.head())
# age h...
Default initialization of std::array?
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edited Aug 18 '13 at 5:24
answered Aug 18 '13 at 4:59
Cas...