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How do I use a file grep comparison inside a bash if/else statement?
When our server comes up we need to check a file to see how the server is configured.
4 Answers
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Allow user to set up an SSH tunnel, but nothing else
I'd like to allow a user to set up an SSH tunnel to a particular machine on a particular port (say, 5000), but I want to restrict this user as much as possible. (Authentication will be with public/private keypair).
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Where is nodejs log file?
I can't find a place where nodejs log file is stored.
Because in my node server I have "Segmentation fault", I want to look at log file for additional info...
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Is there a practical use for weak references? [duplicate]
Since weak references can be claimed by the garbage collector at any time, is there any practical reason for using them?
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Pull to refresh UITableView without UITableViewController
I'm trying to implement a pull to refresh feature in a UITableView within a UIViewController. I can't use a UITableViewController because I want the UITableView to be a smaller subview in the view controller, with some other stuff above it. I assume this is possible, but has anyone seen an implement...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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\unnnn
Unicode代码中十六进制代码为nnnn的字符
\cN
ASCII控制字符。比如\cC代表Ctrl+C
\A
字符串开头(类似^，但不受处理多行选项的影响)
\Z
字符串结尾或行尾(不受处理多行选项的影响)
\z
字符串结尾...
Flattening a shallow list in Python [duplicate]
Is there a simple way to flatten a list of iterables with a list comprehension, or failing that, what would you all consider to be the best way to flatten a shallow list like this, balancing performance and readability?
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Determine if string is in list in JavaScript
In SQL we can see if a string is in a list like so:
14 Answers
14
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How to grep (search) committed code in the Git history
I have deleted a file or some code in a file sometime in the past. Can I grep in the content (not in the commit messages)?
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