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How to redirect output to a file and stdout
In bash, calling foo would display any output from that command on the stdout.
10 Answers
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How to define an alias in fish shell?
...oo.fish, where fish will automatically load it the first time it is called from a new session.
– Lucretiel
Oct 26 '15 at 14:58
1
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How to hide iOS status bar
...he UINavigationController's default preferredStatusBarStyle uses the value from UINav.navigationBar.barStyle. .Default = black status bar content, .Black = white status bar content.
So if you're setting barTintColor to some custom colour (which you likely are), you also need to set barStyle to .Blac...
Replace all 0 values to NA
... without the [<- function:
A sample data frame dat (shamelessly copied from @Chase's answer):
dat
x y
1 0 2
2 1 2
3 1 1
4 2 1
5 0 0
Zeroes can be replaced with NA by the is.na<- function:
is.na(dat) <- !dat
dat
x y
1 NA 2
2 1 2
3 1 1
4 2 1
5 NA NA
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Compiling Java 7 code via Maven
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This worked for me. I am using a mac, with maven from macports and the sun jdk. Apparently that combo was tricky.
– Quantum7
May 5 '14 at 14:03
1
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How can I temporarily disable a foreign key constraint in MySQL?
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@Pacerier From reading that, it appears you can, but only for a single session.
– Brett
Feb 26 '19 at 21:37
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I'm getting Key error in python
...erally means the key doesn't exist. So, are you sure the path key exists?
From the official python docs:
exception KeyError
Raised when a mapping (dictionary) key is not found in the set of
existing keys.
For example:
>>> mydict = {'a':'1','b':'2'}
>>> mydict['a']
'1'
&g...
Linux command or script counting duplicated lines in a text file?
... without the -c or -d flags, uniq doesn't distinguish duplicate lines from non-duplicates, or am I missing something?
– drevicko
Apr 4 '15 at 23:49
add a comment
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How can I overwrite a getter method in an ActiveRecord model?
...only answers are not allowed on SO, please add some context to your answer from what's behind that link. Thanks! :)
– AJT82
Feb 17 '17 at 10:03
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Bogus foreign key constraint fail
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from this blog:
You can temporarily disable foreign key checks:
SET FOREIGN_KEY_CHECKS=0;
Just be sure to restore them once you’re done messing around:
SET FOREIGN_KEY_CHECKS=1;
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