sed throws'bad flag in substitute command' [英] sed throws 'bad flag in substitute command'

问题描述

我想在一个CSS文件中运行一个简单的命令，将绝对路径替换为相对路径，如下所示：

  sed  - i'/ \ / fonts /../ fonts /'/Users/sergeybasharov/WebstormProjects/snap/compiled/Content/stylesheets/style.css 
  

它抛出此

  sed：1：/ Users / sergeybasharov / W ...：替换命令中的错误标志：'b'
  

$ <$ p

code>作为 -i 选项（用于备份文件的后缀）的参数，并且filename参数被视为编辑命令。

您需要指定禁用备份文件创建：

  sed -i''... 
  

在您的示例中：

  sed -i'''/ \ / fonts /../ fonts /'/ Users / sergeybasharov / WebstormProjects / snap / compiled / Content / stylesheets /style.css 
  

计算机是愚蠢的，他们不会根据上下文来计算事物，所以他们可以'显然是一个编辑命令，而不是一个后缀。

I want to run a simple command of replacing absolute paths to relative ones inside a CSS file like this:

sed -i 's/\/fonts/../fonts/' /Users/sergeybasharov/WebstormProjects/snap/compiled/Content/stylesheets/style.css

It throws this

sed: 1: "/Users/sergeybasharov/W ...": bad flag in substitute command: 'b'

What can be wrong in this simple script?

解决方案

In your command s/\/fonts/../fonts/ is being taken as the parameter to the -i option (the suffix to use for the backup file), and the filename argument is being treated as the editing commands.

You need to specify to disable the backup file creation:

sed -i '' ...

In your example:

sed -i '' 's/\/fonts/../fonts/' /Users/sergeybasharov/WebstormProjects/snap/compiled/Content/stylesheets/style.css

Computers are dumb, they don't figure things out by context, so they can't tell that something beginning with s/ is obviously an editing command, not a suffix.

这篇关于sed throws'bad flag in substitute command'的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！