mysqlserverinfo: 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 CentOS possible default full paths are:

/usr/bin/mysqlserverinfo - from package: mysql-utilities

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/mysqlserverinfo - from package: mysql-utilities

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

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