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How to save variable values on program exit?
Your serizliation/deserialization method will depend on your data. Have a look at isolated storage. I used to store the information in a text file, but would like to avoid external files if possible. Inevitably storing data between runs will require something outside the program’s executables.
I can chose an item to edit, go to tab 2, enter a value into the text box, or hit the plus or minus buttons and the value adjusts by 1 up or down. I then hit save and the new value is amended to the list.
Why is the global variable not resetting onsave?
The missing bit is that a Global variable is just that and has to be set / reset by the Set command. A context Variable is the same. Two with the same names are actually different variables, so trying to use Set on a Context Variable will not work. Glad you got it working.
How to assign exit code to a local variable?
local t1=$ (exit 1) tells the shell to: 1 run exit 1 in a subshell; 2 store its output (as in, the text it outputs to standard output) in a variable t1, local to the function.
How to save a file in VI / Vim editor and quit?
To save a file and exit Vim: 1. Switch to command mode by pressing the ESC key. 2. Press : (colon) to open the prompt bar in the bottom left corner of the window. 3. Type x after the colon and hit Enter. This will save the changes and exit. Alternatively, a command that will also save a file and exit the text editor is::wq
How to get the exit code in Bash?
Depending why you are trying to just get the exit code you can also just run if some-command; then echo “Success $?”; else echo “Failure $?”; fi which doesn’t do anything with the output of the command, it just evaluates the exit code of the command run. You can add or ( or $ ( around the command and you’ll still get the same results.