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Bash script error [: !=: unary operator expected
...echo "`ps -ef | grep '\[' | grep root`"
fi;;
*) echo "usage: $0 [-v]"
exit 1;; #It is good practice to throw a code, hence allowing $? check
esac
If one cares not where the '-v' arg is, then simply drop the case inside a loop. The would allow walking all the args and finding '...
sass --watch with automatic minify?
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answered Jan 24 '12 at 0:07
testertester
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Convert String[] to comma separated string in java
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if (name.length > 0) {
StringBuilder nameBuilder = new StringBuilder();
for (String n : name) {
nameBuilder.append("'").append(n.replace("'", "\\'")).append("',");
// can also do the following
// nameBuilder.ap...
How to add a touch event to a UIView?
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580
In iOS 3.2 and higher, you can use gesture recognizers. For example, this is how you would handl...
How to enter quotes in a Java string?
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10 Answers
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7个App Inventor 2文件操作实用技巧，读写文件从未如此顺手 - App应用开发 ...
...存在"：
• App（推荐）：文件存储在 /storage/emulated/0/Android/data/包名/files/ 下，Android 2.2 以上通用，打包后数据隔离且安全，绝大多数场景选这个。
• 私有（Private）：文件存储在 App 私有目录的 files/data/ 子目录中，对手机...
Python loop counter in a for loop [duplicate]
In my example code below, is the counter = 0 really required, or is there a better, more Python, way to get access to a loop counter? I saw a few PEPs related to loop counters, but they were either deferred or rejected ( PEP 212 and PEP 281 ).
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Get jQuery version from inspecting the jQuery object
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answered Jul 28 '11 at 23:40
David HancockDavid Hancock
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How to convert an array of strings to an array of floats in numpy?
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edited Jun 30 '17 at 16:59
user2357112 supports Monica
200k2020 gold badges287287 silver badges373373 bronze badges
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Trigger change event of dropdown
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edited Aug 17 '18 at 7:20
answered May 24 '09 at 15:18
Ch...