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What does the line “#!/bin/sh” mean in a UNIX shell script?
...commands as a one script and it will show the that this file is running in ps command and not the commands inside the file.
./echo.sh
ps -ef |grep echo
trainee 3036 2717 0 16:24 pts/0 00:00:00 /bin/sh ./echo.sh
root 3042 2912 0 16:24 pts/1 00:00:00 grep --color=auto echo
...
How to simulate Android killing my process
...downs at top)
Get back to the application with Home long press or opened apps (depends on the device)
Application will start in recreated ActivityD (ActivityA, ActivityB, ActivityC are dead and will be recreated when you get back to them)
On some devices you can also get back to application (Activ...
Write lines of text to a file in R
... answered Sep 20 '11 at 10:11
ps1ps1
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What do 'real', 'user' and 'sys' mean in the output of time(1)?
...tics
One of these things is not like the other. Real refers to actual elapsed time; User and Sys refer to CPU time used only by the process.
Real is wall clock time - time from start to finish of the call. This is all elapsed time including time slices used by other processes and time the proce...
How to stop mysqld
...sudo /Library/StartupItems/MySQLCOM/MySQLCOM restart
I found that in: https://stackoverflow.com/a/102094/58768
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What does the @ symbol represent in objective-c?
...Because the @ isn't valid in any context in C except a string literal, the tokenizer (an early and simple step in the compiler) could be modified to simply look for the @ character outside of a string constant (the tokenizer understands string literals, so it is in a position to distinguish this). W...
Any way to replace characters on Swift String?
... self.replaceCharacters(characters, toSeparator: "")
}
}
Usage:
let token = "<34353 43434>"
token.replaceCharacters("< >", toString:"+")
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Good or bad practice for Dialogs in wpf with MVVM?
...ed notification from others in the handler. Two solutions:
send a unique token on opening a dialogue window and check that token in the subscription
use generic notification classes <T> where T is enumeration of entities (or for simplicity it can be type of ViewModel).
For a project should ...
Purpose of Django setting ‘SECRET_KEY’
...KEY = ''
conf/project_template/settings.py:61:SECRET_KEY = ''
contrib/auth/tokens.py:54: hash = sha_constructor(settings.SECRET_KEY + unicode(user.id) +
contrib/comments/forms.py:86: info = (content_type, object_pk, timestamp, settings.SECRET_KEY)
contrib/formtools/utils.py:15: orde...
Issue with virtualenv - cannot activate
...).
Edit:
The trick here for Windows is not specifying the BAT extension:
PS C:\DEV\aProject\env\Scripts> & .\activate
(env) PS C:\DEV\aProject\env\Scripts>
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