sed vs awk
2025年2月26日For anything other than simple substitutions on a single line you should be using awk, not sed. Hold spaces, pattern spaces, and 95% of the sed langua […]
For anything other than simple substitutions on a single line you should be using awk, not sed. Hold spaces, pattern spaces, and 95% of the sed langua […]
Touch Keyboard and Handwriting Panel Service 如果禁用，将无法使用中文输入法或任何英文以外的输入法。 Microsoft Software Shadow Copy Provider 如果禁用，System Protection里的System Restor […]
The string editing problem arises in many applications, notably in text editing, molecular sequence comparison, etc. Algorithmic aspects of this probl […]
Given two (sets of) objects \(o_1, o_2\), the learn function generates a program p. When given \(o_1\), the program p recovers \(o_2\). When given ano […]
I found a CatchChallenger benchmark performed in year 2012 to 2016, where gzip, bzip2, lzma, the extreme option of lzma, xz, the extreme option of xz, […]
In this article, I will inspect the internals of git by experiments. I will create repositories, make commits, and use git plumbing commands to reveal […]
Subversion Subversion (svn) uses a technique called “skip-deltas”. In the FSFS back end, each revision of a file is represented as a delta […]
In Firefox, go to about:config, add key browser.urlbar.update2.engineAliasRefresh to true. Otherwise you can’t manually add search engines or ru […]
Unfortunately Stackoverflow is not greenhorn-friendly. Questions asked by newbies are almost always downvoted. Just follow http://www.myoddweb.com/201 […]
Prior to Visual Studio 2017, the MSVC C++ compiler did not have any mechanism to specify C++ language version. In those days, the compiler only suppor […]