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How can I add numbers in a Bash script?
...ntax
Using the external expr utility. Note that this is only needed for really old systems.
num=`expr $num1 + $num2` # Whitespace for expr is important
For floating point:
Bash doesn't directly support this, but there are a couple of external tools you can use:
num=$(awk "BEGIN {print $...
Could not instantiate class named MKMapView
I may be doing something really stupid here as I've done it before and it worked and now...
9 Answers
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How to get a random value from dictionary in python
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@Duncan: I can't wait till all the 3rd party libraries are Python 3.x compatible, so the Python questions don't need 2 answers for every question.
– Gerrat
Feb 1 '11 at 13:54
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Android Studio - Ambiguous method call getClass()
...ror report
The only workaround to this issue is to cast the instance you call getClass() on, to Object as follows:
((Object) this).getClass()
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Running Selenium WebDriver python bindings in chrome
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For Linux
Check you have installed latest version of chrome brwoser-> chromium-browser -version
If not, install latest version of chrome sudo apt-get install chromium-browser
get appropriate version of chrome driver from here
Unzip the chromedriver.zi...
How do I turn off the unlimited whitespace in IntelliJ editor?
...-> Settings -> Editor -> General -> Virtual Space and uncheck 'Allow placement of caret after end of line' . You may also uncheck the other options in the Virtual Space panel.
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How to empty (“truncate”) a file on linux that already exists and is protected in someway?
I have a file called error.log on my server that I need to frequently truncate. I have rw permissions for the file. Opening the file in vi > deleting all content > saving works (obviously). But when I try the below
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How to run crontab job every week on Sunday
...5. Entry: Weekday when the process will be started [0-6] [0 is Sunday]
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# all x min = */x
So according to this your 5 8 * * 0 would run 8:05 every Sunday.
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Install .ipa to iPad with or without iTunes
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Yes, you can install IPA in iPad, first you have to import that IPA to your itunes. Connect your iPad to iTunes then install application just by click on install and then sync.
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How can I render inline JavaScript with Jade / Pug?
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tag script with a dot after, in all javascript block is there any way that render it without newlines?
– Joaquinglezsantos
Feb 22 '16 at 12:51
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