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Identify user in a Bash script called by sudo
...tiple checks - if $USER == 'root' then get $SUDO_USER.
Instead of the command whoami use who am i. This runs the who command filtered for the current session. It gives you more info than you need. So, do this to get just the user:
who am i | awk '{print $1}'
Alternatively (and simpler) you c...
GUI-based or Web-based JSON editor that works like property explorer [closed]
...ally JSON
http://json.bubblemix.net/ Visualise JSON structute, edit inline and export back to prettified JSON.
http://jsoneditoronline.org/ Example added by StackOverflow thread participant. Source: https://github.com/josdejong/jsoneditor
http://jsonmate.com/
http://jsonviewer.stack.hu/
mb21.github....
Specifying column name in a “references” migration
...want to check out the guide I link for more info on migrations in general, and you may even end up putting calling SQL code directly in your migration. I would say ignore it, as it isn't a normal part of rails, you will get 0 performance out of it, as rails' default generated SQL queries take no adv...
Java optional parameters
... by the possibility of more than one return value.
– Andreas Vogl
Dec 26 '19 at 11:05
Adding global variables might ca...
Python - Check If Word Is In A String
I'm working with Python v2, and I'm trying to find out if you can tell if a word is in a string.
11 Answers
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How to print a stack trace in Node.js?
...
console.log(err.stack) and console.trace() do not give you same results. Whereas err.stack gives you the stack trace for the err object itself (functioning the way we all normally think of exceptions), console.trace() will print out the call stack ...
pass **kwargs argument to another function with **kwargs
I do not understand the following example, lets say I have these functions:
5 Answers
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Why cannot cast Integer to String in java?
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Why this is not possible:
Because String and Integer are not in the same Object hierarchy.
Object
/ \
/ \
String Integer
The casting which you are trying, works only if they are in the same hierarchy, e.g.
Object
/
/...
How can I rotate an HTML 90 degrees?
...45 degrees rotation in the demo, so you can see the effect)
Note: The -o- and -moz- prefixes are no longer relevant and probably not required. IE9 requires -ms- and Safari and the Android browser require -webkit-
Update 2018: Vendor prefixes are not needed anymore. Only transform is sufficient. ...
Error on pod install
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If you landed here on or after January 30th 2014, there is a break in CocoaPods causing this. Please read the related blog post found here: http://blog.cocoapods.org/Repairing-Our-Broken-Specs-Repository/
or do:
pod repo remove mas...