2csv: 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/2csv - from package: xml2

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

On Debian possible default full paths are:

/usr/bin/2csv - from package: xml2

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

Error in other languages:
2csv: bevel nie gevind nie
2csv: comandă negăsită
2csv: comando não encontrado
2csv: commande introuvable
2csv: command not found
2csv: käsku ei ole
2csv: không tìm thấy lệnh
2csv: komanda nerasta
2csv: Kommando nicht gefunden.
2csv: kommandot finns inte
2csv: komut yok
2csv: nie znaleziono polecenia
2csv: níor aimsíodh an t-ordú
2csv: no se encontró la orden
2csv: no s'ha trobat l'ordre
2csv: opdracht niet gevonden
2csv: parancs nem található
2csv: perintah tidak ditemukan
2csv: príkaz nenájdený
2csv: příkaz nenalezen
2csv: команда не найдена
2csv: командата не е открита
2csv: 命令找不到
2csv: コマンドが見つかりません