How to preserve a shell variable data until shutdown?

manpreet Best Answer 3 years ago

The shell variable is created by a script. It needs to be retained even after closing terminal and launching another script and accessing it.

I don't want to write to a file(in HDD). If it possible to write the content of variable in file(that is stored exclusively in RAM), how can it be done?

The data needs to be changed frequently, so I don't want to do so much I/O operations to Hard disk.

manpreet 3 years ago

1) Get/Generate some C/Shell code/program to echo/cout it's PID.

2) Name that file, call it "whatever" and compile/chmod +x "whatever"

3) ./allocate $("./whatever --name='$(plugin)' ")

And that should do it.

[P.S] This needs to reference its own self in memory. It is possible, break out of the shell