Dig into your terminal and create the following Bash script:
#!/bin/bashGLOBAL_RET=255function my_function_global() { ls /home/${USER}/.bashrc GLOBAL_RET=$?}function my_function_return() { ls /home/${USER}/.bashrc return $?}function my_function_str() { local UNAME=$1 local OUTPUT="" if [ -e /home/${UNAME}/.bashrc ]; then OUTPUT='FOUND IT' else OUTPUT='NOT FOUND' fi echo ${OUTPUT}}echo "Current ret: ${GLOBAL_RET}"my_function_global "${USER}"echo "Current ret after: ${GLOBAL_RET}"GLOBAL_RET=255echo "Current ret: ${GLOBAL_RET}"my_function_return "${USER}"GLOBAL_RET=$?echo "Current ret after: ${GLOBAL_RET}"# And for giggles, we can pass back output too!GLOBAL_RET=""echo "Current ret: ${GLOBAL_RET}"GLOBAL_RET=$(my_function_str ...
