i have something to accomplish. i need to replace all occurrence of & inside or between <ex> </ex> to #. actual example below:

a & b & c <ex> a & b & c </ex> a & b & c

again, i need to replace all occurrence of & inside <ex> and before </ex>

expected output:

a & b & c <ex> a # b # c </ex> a & b & c

please post the explanation also on how you guys managed to make it.

i have something to accomplish. i need to replace all occurrence of & inside or between <ex> </ex> to #. actual example below:

a & b & c <ex> a & b & c </ex> a & b & c

again, i need to replace all occurrence of & inside <ex> and before </ex>

expected output:

a & b & c <ex> a # b # c </ex> a & b & c

please post the explanation also on how you guys managed to make it.

EDIT#1

Please only provide me with a sed solution since I'm going to run this on an AS400 system and lack the ability to install Perl or any other interpreter.

i have something to accomplish. i need to replace all occurrence of & inside or between (ex) (/ex) to #. actual example below:

a & b & c (ex) a & b & c (/ex) a & b & c

again, i need to replace all occurrence of & inside and before

expected output:

a & b & c (ex) a # b # c (/ex) a & b & c

please post the explanation also on how you guys managed to make it. thanks a lot!

all help will be greatly appreciated!

i have something to accomplish. i need to replace all occurrence of & inside or between <ex> </ex> to #. actual example below:

a & b & c <ex> a & b & c </ex> a & b & c

again, i need to replace all occurrence of & inside <ex> and before </ex>

expected output:

a & b & c <ex> a # b # c </ex> a & b & c

please post the explanation also on how you guys managed to make it.

i have something to accomplish. i need to replace all occurrence of & inside or between <ex> </ex> to #. actual example below:

a & b & c <ex> a & b & c </ex> a & b & c

again, i need to replace all occurrence of & inside <ex> and before </ex>

expected output:

a & b & c <ex> a # b # c </ex> a & b & c

please post the explanation also on how you guys managed to make it.

i have something to accomplish. i need to replace all occurrence of & inside or between (ex) (/ex) to #. actual example below:

a & b & c (ex) a & b & c (/ex) a & b & c

again, i need to replace all occurrence of & inside and before

expected output:

a & b & c (ex) a # b # c (/ex) a & b & c

please post the explanation also on how you guys managed to make it. thanks a lot!

all help will be greatly appreciated!