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Ruby, Difference between exec, system and %x() or Backticks
...invoked process and the exit status.
>> system("date")
Wed Sep 4 22:11:02 CEST 2013
=> true
>> $?
=> #<Process::Status: pid 15470 exit 0>
Backticks
Backticks (``) call a system program and return its output. As opposed to the first approach, the command is not provided th...
grep without showing path/file:line
...sing the alias.
– javadba
Mar 22 at 11:34
@javadba omit the -n flag
– aaronpenne
...
ASP.NET MVC passing an ID in an ActionLink to the controller
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answered Nov 25 '08 at 11:01
AnthonyWJonesAnthonyWJones
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Difference between “git checkout ” and “git checkout -- ”
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answered Jul 3 '11 at 4:51
zwolzwol
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android image button
... |
edited May 27 '19 at 11:08
Zoe
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answered...
What does rake db:test:prepare actually do?
...
119
The rake db:migrate above runs any pending migrations on the
development environment and ...
Get and set position with jQuery .offset()
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answered Jan 6 '11 at 9:09
SteveSteve
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string.ToLower() and string.ToLowerInvariant()
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edited May 23 '17 at 11:54
Community♦
111 silver badge
answered Nov 4 '13 at 22:05
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Can I make a user-specific gitignore file?
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answered Apr 20 '11 at 1:06
grzuygrzuy
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Convert number strings with commas in pandas DataFrame to float
...cale first:
In [ 9]: import locale
In [10]: from locale import atof
In [11]: locale.setlocale(locale.LC_NUMERIC, '')
Out[11]: 'en_GB.UTF-8'
In [12]: df.applymap(atof)
Out[12]:
0 1
0 1200 4200.00
1 7000 -0.03
2 5 0.00
...