I am wondering about some use case with bash script. Imagine that user type:

./my_script.sh INSTALL=FALSE

and then package is installed without any dependencies or type INSTALL=TRUE and then package is installed with all dependencies.

Now the script should know that INSTALL=FALSE is default way so it means that is okay to type just

./my_script.sh

but user needs to specify

./my_script.sh INSTALL=TRUE

if he wants to install package with all dependencies.

Is it possible? How to do it?

CodePudding user response：

If you want your script to remember the config, you should create a config file with correct setting.

• If script ran without any argument, read config file.
• If config file doesn't exist, create it with INSTALL=FALSE
• If script was given an argument, overwrite new setting to config file.

If script ran without any argument, and config file doesn't exist, create a config file with INSTALL=FALSE