Look at this post http://unix.stackexchange.com/a/350163

Permanent variables using kv-bash functions:

1) Download kv-bash file from github:

git clone https://github.com/damphat/kv-bash.git
cp -ar ./kv-bash/kv-bash /usr/local
chmod +x /usr/local/kv-bash

# Put this line in .bash_profile (optional)
source kv-bash

2) Try

#let try create/modify/delete variable
kvset myEmail [email protected]
kvset myCommand "Very Long Long Long String"

#read the varible
kvget myEmail

#you can also use in another script with $(kvget myEmail)
echo $(kvget myEmail)

#delete variable
kvdel myEmail

Look at this post https://unix.stackexchange.com/a/350163

Permanent variables using kv-bash functions:

1) Download kv-bash file from github:

git clone https://github.com/damphat/kv-bash.git
cp -ar ./kv-bash/kv-bash /usr/local
chmod +x /usr/local/kv-bash

# Put this line in .bash_profile (optional)
source kv-bash

2) Try

#let try create/modify/delete variable
kvset myEmail [email protected]
kvset myCommand "Very Long Long Long String"

#read the varible
kvget myEmail

#you can also use in another script with $(kvget myEmail)
echo $(kvget myEmail)

#delete variable
kvdel myEmail