check_postgres_disabled_triggers: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/check_postgres_disabled_triggers - from package: check-postgres

You may install the required package with command apt-get install {package}

Error in other languages:
check_postgres_disabled_triggers: bevel nie gevind nie
check_postgres_disabled_triggers: comandă negăsită
check_postgres_disabled_triggers: comando não encontrado
check_postgres_disabled_triggers: commande introuvable
check_postgres_disabled_triggers: command not found
check_postgres_disabled_triggers: käsku ei ole
check_postgres_disabled_triggers: không tìm thấy lệnh
check_postgres_disabled_triggers: komanda nerasta
check_postgres_disabled_triggers: Kommando nicht gefunden.
check_postgres_disabled_triggers: kommandot finns inte
check_postgres_disabled_triggers: komut yok
check_postgres_disabled_triggers: nie znaleziono polecenia
check_postgres_disabled_triggers: níor aimsíodh an t-ordú
check_postgres_disabled_triggers: no se encontró la orden
check_postgres_disabled_triggers: no s'ha trobat l'ordre
check_postgres_disabled_triggers: opdracht niet gevonden
check_postgres_disabled_triggers: parancs nem található
check_postgres_disabled_triggers: perintah tidak ditemukan
check_postgres_disabled_triggers: príkaz nenájdený
check_postgres_disabled_triggers: příkaz nenalezen
check_postgres_disabled_triggers: команда не найдена
check_postgres_disabled_triggers: командата не е открита
check_postgres_disabled_triggers: 命令找不到
check_postgres_disabled_triggers: コマンドが見つかりません