Return Successful Exist Status

ls -l 
echo $?

pwd
echo $?

pwdd
echo ?



#!/bin/bash

echo hello
echo $?



Return Un-Successful Exist Status

#!/bin/bash

echi hello
echo $?




Return exist status if file exist

#!/bin/bash

ls -l /home/iafzal/check

if [ $? -eq 0 ]
then
echo File exist
else
echo File does not exist
fi