sed命令使用-i选项未能在Mac上，但在Linux上工作

问题描述

我已经成功地使用了以下 SED 命令搜索/ Linux中替换文本：

  SED -i'S / old_link / new_link / G'*
 

然而，当我尝试在我的Mac OS X，我得到：

I thought my Mac runs a normal BASH shell. What's up?

EDIT:

According to @High Performance, this is due to Mac sed being of a different (BSD) flavor, so my question would therefore be how do I replicate this command in BSD sed?

EDIT:

Here is an actual example that causes this:

sed -i 's/hello/gbye/g' *

解决方案

If you use the -i option you need to provide an extension for your backups.

If you have:

File1.txt
File2.cfg

The command:

sed -i '.original' 's/old_link/new_link/g' *

create 2 backup files like:

File1.txt.original
File2.cfg.original

You can use

sed -i '' 's/old_link/new_link/g' *

to ignore backups.

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