在 WSL bash 脚本中将目录更改为 Window 的用户目录

Question

I am trying to write a script to automate installing some things in WSL and then cloning a repo to the user's home folder in Windows (eg C:/Users/Frank/).

To do this I need to get the Windows username (eg Frank ) to know where to cd to. I found that I could execute Windows command line commands with cmd.exe /c '<command>' and that the command echo %USERNAME% outputs the Windows user's username.

This is what I've tried so far:

#!/bin/bash
USER_NAME=`cmd.exe /c 'echo %USERNAME%'`
cd /mnt/c/Users/$USER_NAME
pwd

I get an error that I believe stems from the Windows carriage return characters \r which I guess are at the end of the output of echo %USERNAME% .

The error: ine 3: cd: $'/mnt/c/Users/Frank\r\r\r': No such file or directory

How can I remove all of the \r characters at the end of the output?

Answer 1

Your code, edited:

#!/bin/bash
UNSANITISED_USER_NAME=`cmd.exe /c 'echo %USERNAME%'`
USER_NAME="${UNSANITISED_USER_NAME//$'\r'}"
cd /mnt/c/Users/$USER_NAME
pwd

It uses some sort of string formatting to remove all \r characters (rather than tr , which I couldn't get to work in my testing) adapted from rici's comment here .