Linux 从 shell 脚本中的属性文件读取数据
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Reading data from properties file in shell script
提问by charan
I am writing a shell script which reads data from a properties file and stores in into a local variable in shell script. The problem is when i am trying to read multiple properties from the file and form a string its getting over written
我正在编写一个 shell 脚本，它从属性文件中读取数据并将其存储到 shell 脚本中的局部变量中。问题是当我试图从文件中读取多个属性并形成一个字符串时，它会被覆盖
#!/bin/bash
. /opt/oracle/scripts/user.properties
echo $username
echo $password
echo $service_name
conn=$username$password$service_name
echo $conn
the values of username=xxxx password=yyyy and service_name=zzzz i expect the output to be
username=xxxx password=yyyy 和 service_name=zzzz 的值我希望输出是
xxxxyyyyzzzz
but instead of that i am getting the output as
但不是这样，我得到的输出是
zzzz
please tell me where am i doing the mistake ?
请告诉我我在哪里做错了？
采纳答案by devnull
I'm certain that the file /opt/oracle/scripts/user.propertiescontains CR+LFline endings. (Running the filecommand for the properties file would say ... with CRLF line terminators). Changing those to LFusing dos2unixor any other utility should make it work.
我确定该文件/opt/oracle/scripts/user.properties包含CR+LF行结尾。（运行file属性文件的命令会说... with CRLF line terminators）。将它们更改为LFusingdos2unix或任何其他实用程序应该可以使其工作。
Moreover, instead of saying:
此外，而不是说：
conn=$username$password$service_name
you could say:
你可以说：
conn="${username}${password}${service_name}"
