command-line-interface

I'm working through some optimization work, and I've noticed that in some mysql dumps people post in articles and questions (which I cannot find again now that I'm actually looking), there are high-precision execution times (0.05985215 sec instead of 0.06 sec). How can I see these more precise times for my queries on the command line? EDIT Example of this is: +----------+ | COUNT(*) | +----------+ | 11596 | +----------+ 1 row in set (0.05894344 sec) Using profiling gets me part of the way there, but produces an output too long, and I have to remember to enable it. I am just looking for a

I am attempting to start mplayer. My filename contains spaces and these should be escaped. This is the code I am using: @player_pid = fork do exec "/usr/bin/mplayer #{song.file}" end where #{song.file} contains a path like "/home/example/music/01 - a song.mp3" . How can I escape this variable properly (and possible other weird characters that the title may contain) so the terminal will accept my command? Shellwords should work for you :) exec "/usr/bin/mplayer %s" % Shellwords.escape(song.file) In ruby 1.9.x, it looks like you have to require it first require "shellwords" But in ruby 2.0.x, I

The following error is thrown when trying to run my target: dyld: Library not loaded: @rpath/libswiftCore.dylib Referenced from: x/Xcode/DerivedData/x/Build/Products/Debug/PriorityQueue.framework/Versions/A/PriorityQueue Reason: image not found My target is a Command Line Tool (macOS) written in Swift. I'm using a Cocoa Framework (PriorityQueue) written in Swift. When I set EMBEDDED_CONTENT_CONTAINS_SWIFT to YES on the Framework , the target runs with the following warnings: objc[99144]: Class _TtC10Foundation15NSSimpleCString is implemented in both x/PriorityQueue.framework/Versions/A

How to change Port number in Vue-cli project so that it run's on another port instead of 8080. The port for the Vue-cli webpack template is found in your app root's myApp/config/index.js . All you have to do is modify the port value inside the dev block: dev: { proxyTable: {}, env: require('./dev.env'), port: 4545, assetsSubDirectory: 'static', assetsPublicPath: '/', cssSourceMap: false } Now you can access your app with localhost:4545 also if you have .env file better to set it from there If you're using vue-cli 3.x, you can simply pass the port to the npm command like so: npm run serve -- -