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Impossible postgresql crontab backup on linux centos

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Hi to All,

coul Someone resolve this problem?


1.) If on Linux Centos I execute this file:

Code:

# /usr/bin/backup.sh
wich contains

Code:

    #!/bin/bash
    export PGPASSWORD=”mia_password_del_db” && pg_dump -h localhost -U user -c  -R -v nome_database -n nome_schema > /percorso/dove/salvare/il/file.sql




I obtain a perfect backup in file.sql

2.) But if I put in crontab

Code:

    * 10 * * * root /usr/bin/backup.sh


I obtain file.sql empty with zero bytes.

Tanks in advance.
Gianni Pinna.

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