various changes

opt/zio/bin/backup

@@ -101,13 +101,14 @@ function test_path() {
 host="$(hostname -s)"
 repo="b2:zio-euc-servers"
 
+passwd_file="$env_dir/passwd"
+pre_script_file="$env_dir/pre-script"
+post_script_file="$env_dir/post-script"
+
 b2_account_id=""
 b2_account_key=""
 excludes=()
 paths=()
-passwd_file=""
-pre_script=""
-post_script=""
 services=()
 
 if [[ $UID != 0 ]]; then
@@ -136,9 +137,7 @@ else
             IFS=';' read -ra services <<< "$(get_prop "$env_dir/config" SERVICES)"
     fi
 
-    if [[ -f "$env_dir/passwd" ]]; then
-        passwd_file="$env_dir/passwd"
-    else
+    if [[ ! -f "$env_dir/passwd" ]]; then
         say_die "Password file ($passwd_file) not found."
     fi
 fi
@@ -157,9 +156,9 @@ else
     export B2_ACCOUNT_ID="$b2_account_ID"
 fi
 
-if [[ ! -z $pre_script ]]; then
+if [[ ! -f $pre_script_file ]]; then
     say_do "Executing pre-backup script..."
-    . $pre_script
+    . $pre_script_file
 fi
 
 say_do "Stopping services..."
@@ -180,9 +179,9 @@ do
     systemctl start $service
 done
 
-if [[ ! -z $post_script ]]; then
+if [[ ! -z $post_script_file ]]; then
     say_do "Executing post-backup script..."
-    . $post_script
+    . $post_script_file
 fi
 
 say_do "Removing old backups..."