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Converting a List to a comma separated string
Is there a way to take a List and convert it into a comma separated string?
8 Answers
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What is meant by Ems? (Android TextView)
What is meant by Ems (related to a TextView)? For example in
6 Answers
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How to fix committing to the wrong Git branch?
I just made a perfectly good commit to the wrong branch.
How do I undo the last commit in my master branch and then take those same changes and get them into my upgrade branch?
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Multiple Updates in MySQL
I know that you can insert multiple rows at once, is there a way to update multiple rows at once (as in, in one query) in MySQL?
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memory_get_peak_usage() with “real usage”
If the real_usage argument is set to true the PHP DOCS say it will get the real size of memory allocated from system. If it's false it will get the memory reported by emalloc()
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How to define hash tables in Bash?
What is the equivalent of Python dictionaries but in Bash (should work across OS X and Linux).
15 Answers
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How to get the parents of a merge commit in git?
Some git commands take the parent as a revision; others (such as git revert ), as a parent number. How to get the parents for both cases. I don’t want to use the graphical log command as that often requires scrolling down a long tree to find the second parent.
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通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...这些问题时，经常使用的一种简单手段。ulimit 是一种 linux 系统的内键功能，它具有一套参数集，用于为由它生成的 shell 进程及其子进程的资源使用设置限制。本文将在后面的章节中详细说明 ulimit 的功能，使用以及它的影响，...
Builder Pattern in Effective Java
I have recently started to read Effective Java by Joshua Bloch. I found the idea of the Builder pattern [Item 2 in the book] really interesting. I tried to implement it in my project but there were compilation errors. Following is in essence what I was trying to do:
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YYYY-MM-DD format date in shell script
I tried using $(date) in my bash shell script, however, I want the date in YYYY-MM-DD format.
How do I get this?
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