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How to assign name for a screen? [closed]
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To start a new session
screen -S your_session_name
To rename an existing session
Ctrl+a, : sessionname YOUR_SESSION_NAME Enter
You must be inside the session
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How can I log the stdout of a process started by start-stop-daemon?
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To expand on ypocat's answer, since it won't let me comment:
start-stop-daemon --start --quiet --chuid $DAEMONUSER \
--make-pidfile --pidfile $PIDFILE --background \
--startas /bin/bash -- -c "exec $DAEMON $DAEMON_ARGS > /var/log/some.log 2>&1"
Using...
iPhone 5 CSS media query
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Another useful media feature is device-aspect-ratio.
Note that the iPhone 5 does not have a 16:9 aspect ratio. It is in fact 40:71.
iPhone < 5:
@media screen and (device-aspect-ratio: 2/3) {}
iPhone 5:
@media screen and (device-aspect...
How to change the status bar color in Android?
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Android 5.0 Lollipop introduced Material Design theme which automatically colors the status bar based on the colorPrimaryDark value of the theme.
This is supported on device pre-lollipop thanks to the library support-v7-appcompat starting from version 21. Blogpost about sup...
Outputting data from unit test in python
...ce what caused the error? I am aware of the ability to create a customized message, which can carry some information, but sometimes you might deal with more complex data, that can't easily be represented as a string.
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Show which git tag you are on?
...llows:
git describe --exact-match --tags $(git log -n1 --pretty='%h')
Someone with more git-fu may have a more elegant solution...
This leverages the fact that git-log reports the log starting from what you've checked out. %h prints the abbreviated hash. Then git describe --exact-match --tags fi...
Sort array of objects by object fields
How can I sort this array of objects by one of its fields, like name or count ?
19 Answers
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How to check if all of the following items are in a list?
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Operators like <= in Python are generally not overriden to mean something significantly different than "less than or equal to". It's unusual for the standard library does this--it smells like legacy API to me.
Use the equivalent and more clearly-named method, set.issubset. Note th...
ViewController respondsToSelector: message sent to deallocated instance (CRASH)
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Use Instruments to track down deallocated instance errors. Profile your application (Cmd ⌘+I) and choose Zombies template. After your application is running, try to crash it. You should get something like that:
Click on the arrow ...
LaTeX source code listing like in professional books
...o produce an output like in known books, for example one for the Spring Framework? I've tried with the latex listings package but wasn't able to produce something that looked as nice as the one below. So I'm primarely interested in the formatting instructions to produce something like the sample bel...