由sed返回的字符串無法使用curl

Question

我想要傳遞一個主機名以從Java樣式屬性文件中捲曲。

this.properties

instance.dns=localhost 
... 

bash命令

./postFiles.sh this.properties

bash腳本

#!/bin/bash 

#blows up 
HOST=$(grep "^instance.dns=" ${1}| sed "s%instance.dns=\(.*\)%\1%") 
URL="$(echo 'http://admin:admin@'${HOST}':8080/documentservice/api/doc')" 
echo "$URL" 

#works 
HOST="$(echo 'localhost')" 
URL="$(echo 'http://admin:admin@'${HOST}':8080/documentservice/api/doc')" 
echo "$URL" 

curl -v --globoff -F 'docKey=testFile0' -F 'fileType=IFP Paper Application' -F 'myFile=@DarthTests.jpg' $URL 

兩個代碼塊呼應相同的URL：
http://admin:admin@localhost:8080/documentservice/api/doc

但是，如果我用SED捲曲產生的網址無法解析主機

Adding handle: conn: 0x7ff473803a00 
* Adding handle: send: 0 
* Adding handle: recv: 0 
* Curl_addHandleToPipeline: length: 1 
* - Conn 0 (0x7ff473803a00) send_pipe: 1, recv_pipe: 0 
* Could not resolve host: localhost 
* Closing connection 0 
curl: (6) Could not resolve host: localhost 

爲什麼sed的鏈接不可用，它看起來什麼時候一樣？

Answer 1

如果this.properties使用DOS風格的行結束，你就會有HOST="localhost\r"

試試這個：

HOST=$(sed -n -e 's/\r$//' -e 's/^instance.dns=//p' "$1")