Update backup scripts to use "new" test operator ([[)

Author: alanorth

backup/backup_etc.sh

@@ -19,19 +19,19 @@ FUNCTIONS=/home/backup/scripts/backup/functions.sh
 SETTINGS=/home/backup/scripts/backup/settings.ini
 DATE="$(date +%Y%m%d)"
 
-[ -e "$FUNCTIONS" ] || exit 1
+[[ -e "$FUNCTIONS" ]] || exit 1
 source "$FUNCTIONS"
 
 # parse settings
-[ -e "$SETTINGS" ] || exit 1
+[[ -e "$SETTINGS" ]] || exit 1
 cfg_parser "$SETTINGS"
 
 # read variables in [etc] section
 cfg.section.etc
 
 # Check for the existence of the backup directory and create
 # it if it doesn't exist.
-if [ ! -d "$backup_dir" ]
+if [[ ! -d "$backup_dir" ]]
 then
     mkdir -p "$backup_dir"
 fi

backup/backup_mysql.sh

@@ -19,19 +19,19 @@ FUNCTIONS=/home/backup/scripts/backup/functions.sh
 SETTINGS=/home/backup/scripts/backup/settings.ini
 DATE="$(date +%Y%m%d)"
 
-[ -e "$FUNCTIONS" ] || exit 1
+[[ -e "$FUNCTIONS" ]] || exit 1
 source "$FUNCTIONS"
 
 # parse settings
-[ -e "$SETTINGS" ] || exit 1
+[[ -e "$SETTINGS" ]] || exit 1
 cfg_parser "$SETTINGS"
 
 # read variables in [mysql] section
 cfg.section.mysql
 
 # Check for the existence of the backup directory and create
 # it if it doesn't exist.
-if [ ! -d "$backup_dir" ]
+if [[ ! -d "$backup_dir" ]]
 then
     mkdir -p "$backup_dir"
 fi

backup/backup_postgres.sh

@@ -19,11 +19,11 @@ FUNCTIONS=/home/backup/scripts/backup/functions.sh
 SETTINGS=/home/backup/scripts/backup/settings.ini
 DATE="$(date +%Y%m%d)"
 
-[ -e "$FUNCTIONS" ] || exit 1
+[[ -e "$FUNCTIONS" ]] || exit 1
 source "$FUNCTIONS"
 
 # parse settings
-[ -e "$SETTINGS" ] || exit 1
+[[ -e "$SETTINGS" ]] || exit 1
 cfg_parser "$SETTINGS"
 
 # read variables in [postgres] section
@@ -35,7 +35,7 @@ export PGPASSWORD="$password"
 
 # Check for the existence of the backup directory and create
 # it if it doesn't exist.
-if [ ! -d "$backup_dir" ]
+if [[ ! -d "$backup_dir" ]]
 then
     mkdir -p "$backup_dir"
 fi

backup/cleanup.sh

@@ -18,11 +18,11 @@
 FUNCTIONS=/home/backup/scripts/backup/functions.sh
 SETTINGS=/home/backup/scripts/backup/settings.ini
 
-[ -e "$FUNCTIONS" ] || exit 1
+[[ -e "$FUNCTIONS" ]] || exit 1
 source "$FUNCTIONS"
 
 # parse settings
-[ -e "$SETTINGS" ] || exit 1
+[[ -e "$SETTINGS" ]] || exit 1
 cfg_parser "$SETTINGS"
 
 # read which sections to clean

backup/mysql_maintenance.sh

@@ -18,11 +18,11 @@
 FUNCTIONS=/home/backup/scripts/backup/functions.sh
 SETTINGS=/home/backup/scripts/backup/settings.ini
 
-[ -e "$FUNCTIONS" ] || exit 1
+[[ -e "$FUNCTIONS" ]] || exit 1
 source "$FUNCTIONS"
 
 # parse settings
-[ -e "$SETTINGS" ] || exit 1
+[[ -e "$SETTINGS" ]] || exit 1
 cfg_parser "$SETTINGS"
 
 # read variables in [mysql] section

backup/postgres_maintenance.sh

@@ -18,11 +18,11 @@
 FUNCTIONS=/home/backup/scripts/backup/functions.sh
 SETTINGS=/home/backup/scripts/backup/settings.ini
 
-[ -e "$FUNCTIONS" ] || exit 1
+[[ -e "$FUNCTIONS" ]] || exit 1
 source "$FUNCTIONS"
 
 # parse settings
-[ -e "$SETTINGS" ] || exit 1
+[[ -e "$SETTINGS" ]] || exit 1
 cfg_parser "$SETTINGS"
 
 # read variables in [postgres] section