How does a shell script read values in a properties file
This article mainly explains how the shell script reads the values in the properties file. Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how the shell script reads the values in properties files.
The properties file shown in the following code is a common property file in various programming languages, and reading value through key is an extremely common requirement.
# Port server.port=8520# maximum total upload file spring.servlet.multipart.max-request-size=10MB# maximum value of a single file spring.servlet.multipart.max-file-size=10MB
Shell in Linux usually requires programmers to write a method to read properties files. The following is a method I wrote, personal test is effective, you are welcome to use it.
# read property file specified key value get_value_of_properties_file () {result= "" proFilePath= "$1" key= "$2" if ["WJA$ {key}" = "WJA"]; then echo "parameter error, failed to specify a valid Key." Echo "" > & 2 exit 1 fi if [!-f ${proFilePath}]; then echo "property file (${proFilePath}) does not exist." Echo "> & 2 exit 1 fi if [!-r ${proFilePath}]; then echo" the current user does not have readable access to the properties file (${proFilePath}). " Echo "" > & 2 exit 1 fi keyLength=$ (echo ${key} | wc-L) lineNumStr=$ (cat ${proFilePath} | wc-l) lineNum=$ ((${lineNumStr})) for ((I = 1; I)
