How to list variables declared in script in bash?

Question

In my script in bash, there are lot of variables, and I have to make something to save them to file. My question is how to list all variables declared in my script and get l

Answer 1

Try this : set | egrep "^\w+=" (with or without the | less piping)

The first proposed solution, ( set -o posix ; set ) | less, works but has a drawback: it transmits control codes to the terminal, so they are not displayed properly. So for example, if there is (likely) a IFS=$' \t\n' variable, we can see:

IFS='
'

…instead.

My egrep solution displays this (and eventually other similars ones) properly.