[Koha] How can I make backups?

[Araik Manukyan]

Dear friends,

 

I have installed. Koha 10.02 but now I'm unable to make backups for marc
records. 

 

How can I make backups?

 I  have tried script bin/cronjobs/backup.sh but it has  generated following
error

*****************************************

./cronjobs/backup.sh: 1: ./cronjobs/backup.sh: xmlstarlet: not found

./cronjobs/backup.sh: 1: ./cronjobs/backup.sh: xmlstarlet: not found

./cronjobs/backup.sh: 1: ./cronjobs/backup.sh: xmlstarlet: not found

./cronjobs/backup.sh: 1: ./cronjobs/backup.sh: xmlstarlet: not found

./cronjobs/backup.sh: 1: ./cronjobs/backup.sh: xmlstarlet: not found

./cronjobs/backup.sh: 1: ./cronjobs/backup.sh: xmlstarlet: not found

./cronjobs/backup.sh: 17: ./cronjobs/backup.sh: mail: not found

********************************************

How can I fix this?

 

Thank you for your help!

Araik