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Getting pids from ps -ef |grep keyword
...u include the -f options. That makes pgrep match keywords in the whole command (including arguments) instead of just the process name.
pgrep -f keyword
From the man page:
-f The pattern is normally only matched against the process name. When -f is set, the full command line is used....
How can I add a boolean value to a NSDictionary?
Well, for integers I would use NSNumber . But YES and NO aren't objects, I guess. A.f.a.i.k. I can only add objects to an NSDictionary , right?
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How to compare times in Python?
I see that date comparisons can be done and there's also datetime.timedelta() , but I'm struggling to find out how to check if the current time ( datetime.datetime.now() ) is earlier, later or the same than a specified time (e.g. 8am) regardless of the date.
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When should you branch?
...ing out the following article, which explains the principles of branching, and when to use them:
Ned Batchelder - Subversion branching quick start
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DateTime.Now vs. DateTime.UtcNow
...nciples of how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
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COUNT DISTINCT with CONDITIONS
... only positive values. Zeros or negative values would be evaluated as null and won't be included in count.
One thing to note here is that this can be done by reading the table once. When it seems that you have to read the same table twice or more, it can actually be done by reading once, in most of...
Override Java System.currentTimeMillis for testing time sensitive code
...commend that instead of messing with the system clock, you bite the bullet and refactor that legacy code to use a replaceable clock. Ideally that should be done with dependency injection, but even if you used a replaceable singleton you would gain testability.
This could almost be automated with se...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网 - 专注IT技能提升
驯服Linux OOM Killer（优质英文资料翻译）Taming-the-OOM-killer全面介绍Linux OOM Killer的内部原理，原文为英文，Google翻译+校对，若翻译不佳请参考原文，谢谢。在极低的内存条件下， OOM（out-of-memory） Killer会启动并使用一组随时间演变...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网 - 专注IT技能提升
驯服Linux OOM Killer（优质英文资料翻译）Taming-the-OOM-killer全面介绍Linux OOM Killer的内部原理，原文为英文，Google翻译+校对，若翻译不佳请参考原文，谢谢。在极低的内存条件下， OOM（out-of-memory） Killer会启动并使用一组随时间演变...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网 - 专注IT技能提升
驯服Linux OOM Killer（优质英文资料翻译）Taming-the-OOM-killer全面介绍Linux OOM Killer的内部原理，原文为英文，Google翻译+校对，若翻译不佳请参考原文，谢谢。在极低的内存条件下， OOM（out-of-memory） Killer会启动并使用一组随时间演变...