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How to quit a java app from within the program
... JonJon
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...system should contain plenty information for your quest. My system (2.6.32-40-generic #87-Ubuntu) suggests:
/sys/class/tty
Which gives you descriptions of all TTY devices known to the system. A trimmed down example:
# ll /sys/class/tty/ttyUSB*
lrwxrwxrwx 1 root root 0 2012-03-28 20:43 /sys/class...
What is the optimal length for user password salt? [closed]
...ly need to be long enough so that each user's salt will be unique. Random 64-bit salts are very unlikely to ever repeat even with a billion registered users, so this should be fine. A singly repeated salt is a relatively minor security concern, it allows an attacker to search two accounts at once bu...
Handling file renames in git
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edited Nov 20 '19 at 14:11
Sae1962
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answered Apr 14 '10 at ...
Crop MP3 to first 30 seconds
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142
I also recommend ffmpeg, but the command line suggested by John Boker has an unintended side ef...
How to delete SQLite database from Android programmatically
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412
Once you have your Context and know the name of the database, use:
context.deleteDatabase(DAT...
WPF ListView turn off selection
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edited Jul 14 '15 at 18:28
answered Jun 26 '09 at 21:18
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Scale image to fit a bounding box
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Note: Even though this is the accepted answer, the answer below is more accurate and is currentl...
MySQL ON vs USING?
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415
It is mostly syntactic sugar, but a couple differences are noteworthy:
ON is the more general...
Case insensitive comparison NSString
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if( [@"Some String" caseInsensitiveCompare:@"some string"] == NSOrderedSame ) {
// strings are...