# cat check
if [ -d $1 ]; then
echo '- OUT_DIR exists'
else
echo; echo; echo 'ERROR: OUT_DIR does not exist'
exit 1
fi

# ll
total 8
-rw-r--r-- 1 root root 107 Nov 24 12:56 check

# sh check Test


ERROR: OUT_DIR does not exist

# mkdir Test

# ll
total 16
-rw-r--r-- 1 root root  107 Nov 24 12:56 check
drwxr-xr-x 2 root root 4096 Nov 24 12:57 Test

# sh check Test

- OUT_DIR exists
# sh check test


ERROR: OUT_DIR does not exist
 #