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How to represent empty char in Java Character class
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A null char literal is still a character and takes space in storage.
– Jimmy T.
Jun 15 '14 at 13:50
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How can I remove the extension of a filename in a shell script?
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You should be using the command substitution syntax $(command) when you want to execute a command in script/command.
So your line would be
name=$(echo "$filename" | cut -f 1 -d '.')
Code explanation:
echo get the value of the variable $filename a...
Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
A Rails 3.2.0 app, working fine with Thin web server, both locally and on Heroku cedar stack.
9 Answers
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ADB Install Fails With INSTALL_FAILED_TEST_ONLY
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Looks like you need to modify your AndroidManifest.xml
Change android:testOnly="true" to android:testOnly="false" or remove this attribute.
If you want to keep the attribute android:testOnly as true you can use pm install command with -t option, but you may n...
How to access the last value in a vector?
... vector that is nested in a dataframe one or two levels. Is there a quick and dirty way to access the last value, without using the length() function? Something ala PERL's $# special var?
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How to detect Safari, Chrome, IE, Firefox and Opera browser?
I have 5 addons/extensions for FF, Chrome, IE, Opera, and Safari.
24 Answers
24
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Finding most changed files in Git
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you can use the git effort (from the git-extras package) command which shows statistics about how many commits per files (by commits and active days).
EDIT: git effort is just a bash script you can find here and adapt to your needs if you need something more special.
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Writing a dict to txt file and reading it back?
...mes not recommended. The problem is that eval() will evaluate any string, and if someone tricked you into running a really tricky string, something bad might happen. In this case, you are just running eval() on your own file, so it should be okay.
But because eval() is useful, someone made an alt...
Get difference between two lists
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@Drewdin: Lists do not support the "-" operand. Sets, however, do, and that what is demonstrated above if you look closely.
– Godsmith
Oct 14 '14 at 21:21
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What is the best way to repeatedly execute a function every x seconds?
...er (just like an NSTimer in Objective C). This code will run as a daemon and is effectively like calling the python script every minute using a cron, but without requiring that to be set up by the user.
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