diff --git a/crontabbackupdaily/README.md b/crontabbackupdaily/README.md
index 3d18cd4..dcb09ee 100644
--- a/crontabbackupdaily/README.md
+++ b/crontabbackupdaily/README.md
@@ -1,6 +1,5 @@
 ### crontab backup daily
-Simple backup script for everyday cron execution.
-After execution `crontab -e` add new line to crontab schedule:
+Simple backup script for everyday cron execution. Make the file executable and after execution `crontab -e` add new line to crontab schedule:
 ```
-@daily sh /home/user/backup.sh
+@daily /home/user/backup.sh
 ```
\ No newline at end of file
diff --git a/crontabbackupdaily/backup.sh b/crontabbackupdaily/backup.sh
index 77524e7..2b16c1c 100755
--- a/crontabbackupdaily/backup.sh
+++ b/crontabbackupdaily/backup.sh
@@ -3,18 +3,32 @@
 # after execution `crontab -e` add new line to crontab schedule:
 # @daily sh /home/user/backup.sh
 
+# dir for archives:
+SAVEDIR=/home/user/archive/
+
 # files and dirs for backup:
 backups[0]=/home/user/some.file
 backups[1]=/home/user/somedir
-# dir for archives:
-SAVEDIR=/home/user/archive/
+# mysql databases for backup:
+db[0]=databasename1
+db[1]=databasename2
 # number of days for backup
 DAYS=5
 WEEKS=10
 
+# create db backups
+for n in ${!db[@]}; do
+  dbbackups[n]=${SAVEDIR}${db[n]}.gz
+  mysqldump ${db[n]} > ${dbbackups[n]::-3}
+  gzip ${dbbackups[n]::-3}
+done
+
 # create archive with file name 'arc.tar.gz'
 tar -cvzf ${SAVEDIR}arc.tar.gz ${backups[*]}
 
+# remove db backups
+rm ${dbbackups[*]}
+
 # save last WEEKS
 if [ -e ${SAVEDIR}arc-w1.tar.gz ]
 then