bash 重击打印“\r”
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Bash printing "\r"
提问by user1137042
I'm using OS X, and there is no "-e" equivalent.
我使用的是 OS X，没有“-e”等价物。
How can I textually print "\r"? Is there even a way to do that?
如何以文本方式打印“\r”？有没有办法做到这一点？
回答by SiegeX
You could use echo $'\r'which is supported by bash
您可以使用echo $'\r'支持的bash
回答by Mithrandir
How about:
怎么样：
echo "\r"
Works for me.
对我来说有效。
回答by Keith Thompson
printf '\r'
The printfcommand in general tends to be better than echofor cases other than very simple ones. It has more capabilities and fewer variations from one implementation to another.
该printf命令通常echo比非常简单的情况以外的情况更好。从一种实现到另一种实现，它具有更多的功能和更少的变化。
回答by ?mega
Script:
脚本：
#!/bin/bash
r=$'\r'
t=$'\t'
echo "${t}${t}1${r}${t}2${r}3"
Output:
输出：
3 2 1
