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How can I strip first X characters from string using sed?
...{var:5}
Are you sure bash is the shell executing your script?
Even the POSIX-compliant
var=${var#?????}
would be preferable to using an external process, although this requires you to hard-code the 5 in the form of a fixed-length pattern.
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Pulse Secure解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...制解决方案时，如何才能将解决方案部署在生产环境中是一个主要考虑因素。分阶段的部署接入控制解决方案适用于大多数企业，允许循序渐进地部署控制功能。实际上，并非所有的网络段都是相同的，虽然某些网络段可能只需...
Confused by python file mode “w+”
...tiple parameters. r, w, or a are exclusive, but b can be added to any of those, as can +, or U... It's a combinatorial explosion.
– rmunn
Oct 3 '14 at 6:41
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Post-install script with Python setuptools
Is it possible to specify a post-install Python script file as part of the setuptools setup.py file so that a user can run the command:
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Apache两种工作模式区别及配置切换 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ervers”个子进程后，为了满足MinSpareServers设置的需要创建一个进程，等待一秒钟，继续创建两个，再等待一秒钟，继续创建四个……如此按指数级增加创建的进程数，最多达到每秒32个，直到满足MinSpareServers设置的值为止。这就...
How do I create a new class in IntelliJ without using the mouse?
......).
You can also do it from the Navigation Bar, press Alt+Home, then choose package with arrow keys, then press Alt+Insert.
Another useful shortcut is View | Select In (Alt+F1), Project (1), then Alt+Insert to create a class near the existing one or use arrow keys to navigate through the package...
How do I access my SSH public key?
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on Mac OS X: cat ~/.ssh/id_rsa.pub
– karlingen
Apr 9 '14 at 8:40
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Provisioning Profiles menu item missing from Xcode 5
After spending a whole day installing a fresh copy of Mac OS X v10.8 (Mountain Lion), Xcode 5, fixing provisioning profiles, certificates, creating new ones, I finally managed to get my applications running on my iPad again. The problem is that in Xcode 5 I don't have a menu item for Library ...
Longest line in a file
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Note that only the -c -l -m -w options are POSIX. -L is a GNUism.
– Jens
Aug 30 '11 at 7:24
4
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What is a deadlock?
When writing multi-threaded applications, one of the most common problems experienced are deadlocks.
17 Answers
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